Portland, Oregon Weather Conditions

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Current Conditions

  • 62°
  • Mostly Cloudy
  • Wind: SSE 12 mph
  • Humidity: 80%
  • Visibility: 10.0 miles
  • Dew Point: 56°
  • Pressure: 29.80 in. -

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Next 12 Hours

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Rain Showers
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Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Monday
  • Rain
  • High: 64 °
  • Low: 52 °
  • Rain
  • Tuesday
  • Chance of Rain
  • High: 61 °
  • Low: 54 °
  • Chance of Rain
  • Wednesday
  • Rain
  • High: 63 °
  • Low: 54 °
  • Rain
  • Thursday
  • Chance of Rain
  • High: 59 °
  • Low: 52 °
  • Chance of Rain
  • Friday
  • Chance of Rain
  • High: 63 °
  • Low: 50 °
  • Chance of Rain

Forecast for Portland, Oregon

Updated: 8:00 AM PDT on October 20, 2014

  • Monday

    Overcast with rain, then rain showers in the afternoon. High of 64F. Winds from the South at 5 to 10 mph. Chance of rain 100%.

  • Monday Night

    Mostly cloudy with rain showers, then a chance of rain after midnight. Low of 52F. Winds from the South at 5 to 10 mph. Chance of rain 60%.

  • Tuesday

    Mostly cloudy with a chance of rain. High of 61F. Winds from the South at 5 to 10 mph. Chance of rain 80%.

  • Tuesday Night

    Overcast with rain. Low of 54F. Breezy. Winds from the SSE at 15 to 20 mph. Chance of rain 100% with rainfall amounts near 0.3 in. possible.

  • Wednesday

    Overcast with rain. High of 63F. Winds from the South at 10 to 15 mph. Chance of rain 100% with rainfall amounts near 0.4 in. possible.

  • Wednesday Night

    Overcast with a chance of rain. Low of 54F. Winds from the SSE at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.7 in. possible.

  • Thursday

    Overcast with a chance of rain. High of 59F. Winds from the South at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.2 in. possible.

  • Thursday Night

    Overcast with a chance of rain in the evening, then clear. Low of 52F. Winds from the ESE at 5 to 10 mph. Chance of rain 40%.

  • Friday

    Overcast in the morning, then partly cloudy with a chance of rain. High of 63F. Winds from the East at 5 to 10 mph. Chance of rain 20%.

  • Friday Night

    Partly cloudy with a chance of rain. Low of 50F. Winds from the SSE at 5 to 10 mph. Chance of rain 60% with rainfall amounts near 0.3 in. possible.

  • Saturday

    Overcast with a chance of rain. High of 64F. Winds from the South at 10 to 15 mph. Chance of rain 20%.

  • Saturday Night

    Partly cloudy with a chance of rain. Low of 48F. Winds from the South at 5 to 10 mph. Chance of rain 50%.

  • Sunday

    Mostly cloudy. High of 63F. Winds from the South at 5 to 10 mph.

  • Sunday Night

    Mostly cloudy. Low of 52F. Winds less than 5 mph.

  • Monday

    Overcast with a chance of rain. High of 61F. Winds from the SE at 5 to 10 mph. Chance of rain 50% with rainfall amounts near 0.2 in. possible.

  • Monday Night

    Overcast with a chance of a thunderstorm. Low of 50F. Winds from the South at 5 to 10 mph. Chance of rain 40%.

  • Tuesday

    Overcast with a chance of a thunderstorm. High of 59F. Winds from the SW at 5 to 10 mph. Chance of rain 40%.

  • Tuesday Night

    Partly cloudy with a chance of a thunderstorm. Fog overnight. Low of 43F. Winds from the SSW at 5 to 10 mph. Chance of rain 40%.

  • Wednesday

    Mostly cloudy with a chance of a thunderstorm. Fog early. High of 46F. Winds from the SW at 5 to 10 mph. Chance of rain 50% with rainfall amounts near 0.2 in. possible.

  • Wednesday Night

    Overcast with a chance of a thunderstorm. Fog overnight. Low of 39F. Winds from the SW at 5 to 10 mph. Chance of rain 40%.

  • Thursday

    Mostly cloudy with a chance of a thunderstorm. Fog early. High of 45F. Winds from the SW at 5 to 10 mph. Chance of rain 40%.

  • Thursday Night

    Clear. Fog overnight. Low of 39F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Portland - West Hills, Portland, OR

Updated: 2:11 PM PDT

Temperature: 61.0 °F Dew Point: 42 °F Humidity: 50% Wind: Calm Pressure: 29.70 in Hourly Precipitation: 0.00 in Graphs

Location: Lair Hill, Portland, OR

Updated: 2:11 PM PDT

Temperature: 68.9 °F Dew Point: 59 °F Humidity: 70% Wind: East at 2.2 mph Pressure: 29.76 in Hourly Precipitation: 0.00 in Graphs

Location: Bridlemile, Portland, OR

Updated: 2:10 PM PDT

Temperature: 61.2 °F Dew Point: 57 °F Humidity: 86% Wind: SSW at 3.2 mph Pressure: 29.61 in Hourly Precipitation: - Graphs

Location: Hillsdale, Portland, OR

Updated: 2:11 PM PDT

Temperature: 65.5 °F Dew Point: 56 °F Humidity: 70% Wind: ESE at 3.1 mph Pressure: 29.21 in Hourly Precipitation: 0.00 in Graphs

Location: Multnomah Village North, Portland, OR

Updated: 1:57 PM PDT

Temperature: 62.0 °F Dew Point: 58 °F Humidity: 85% Wind: East at 2.0 mph Pressure: 29.80 in Hourly Precipitation: 0.00 in Graphs

Location: N of Bridlemile School, Portland, OR

Updated: 1:59 PM PDT

Temperature: 62.0 °F Dew Point: 56 °F Humidity: 82% Wind: East at 3.0 mph Pressure: 29.79 in Hourly Precipitation: 0.00 in Graphs

Location: Westerly, NW Portland, Portland, OR

Updated: 1:57 PM PDT

Temperature: 63.2 °F Dew Point: 56 °F Humidity: 77% Wind: Calm Pressure: 29.75 in Hourly Precipitation: - Graphs

Location: Northwest (Pearl), Portland, OR

Updated: 2:07 PM PDT

Temperature: 68.5 °F Dew Point: 56 °F Humidity: 65% Wind: NW at 13.6 mph Pressure: 29.82 in Hourly Precipitation: 0.00 in Graphs

Location: South Burlingame, Portland, OR

Updated: 2:11 PM PDT

Temperature: 61.6 °F Dew Point: 56 °F Humidity: 83% Wind: Calm Pressure: 29.42 in Hourly Precipitation: 0.00 in Graphs

Location: Richmond / Stripling Weather Network, Portland, OR

Updated: 2:02 PM PDT

Temperature: 61.9 °F Dew Point: 59 °F Humidity: 90% Wind: Calm Pressure: 29.74 in Hourly Precipitation: - Graphs

Location: Portland Rowing Club, Portland, OR

Updated: 2:11 PM PDT

Temperature: 62.7 °F Dew Point: 57 °F Humidity: 82% Wind: SSW at 6.0 mph Pressure: 29.80 in Hourly Precipitation: 0.00 in Graphs

Location: Waverleigh Heights, Portland, OR

Updated: 2:02 PM PDT

Temperature: 62.6 °F Dew Point: 59 °F Humidity: 87% Wind: Calm Pressure: 29.77 in Hourly Precipitation: - Graphs

Location: Sullivan's Gulch, Portland, OR

Updated: 2:11 PM PDT

Temperature: 63.1 °F Dew Point: 49 °F Humidity: 59% Wind: Calm Pressure: 29.53 in Hourly Precipitation: 0.00 in Graphs

Location: Irvington, Portland, OR

Updated: 2:11 PM PDT

Temperature: 63.8 °F Dew Point: 58 °F Humidity: 81% Wind: Calm Pressure: 29.72 in Hourly Precipitation: 0.00 in Graphs

Location: Laurelhurst, Portland, OR

Updated: 2:11 PM PDT

Temperature: 61.7 °F Dew Point: 52 °F Humidity: 70% Wind: SSE at 2.0 mph Pressure: 29.62 in Hourly Precipitation: 0.00 in Graphs

Location: Smith School, Portland, OR

Updated: 1:59 PM PDT

Temperature: 63.3 °F Dew Point: 56 °F Humidity: 78% Wind: West at 2.2 mph Pressure: 29.79 in Hourly Precipitation: 0.00 in Graphs

Location: Creston Park, Portland, OR

Updated: 2:11 PM PDT

Temperature: 63.2 °F Dew Point: 59 °F Humidity: 85% Wind: Calm Pressure: 29.78 in Hourly Precipitation: 0.00 in Graphs

Location: Raleigh Park, Portland, OR

Updated: 2:10 PM PDT

Temperature: 64.8 °F Dew Point: 57 °F Humidity: 75% Wind: SE at 1.0 mph Pressure: 29.77 in Hourly Precipitation: 0.00 in Graphs

Location: SW Portland - Tryon Creek, Portland, OR

Updated: 2:07 PM PDT

Temperature: 63.9 °F Dew Point: 59 °F Humidity: 83% Wind: SW at 2.2 mph Pressure: 29.77 in Hourly Precipitation: 0.00 in Graphs

Location: West Slope, Portland, OR

Updated: 1:58 PM PDT

Temperature: 61.3 °F Dew Point: 57 °F Humidity: 84% Wind: Calm Pressure: 29.75 in Hourly Precipitation: 0.00 in Graphs

Location: Torreyview, Portland, OR

Updated: 2:11 PM PDT

Temperature: 59.9 °F Dew Point: 53 °F Humidity: 79% Wind: Calm Pressure: 30.06 in Hourly Precipitation: 0.00 in Graphs

Location: Woodstock, Portland, OR

Updated: 2:07 PM PDT

Temperature: 61.3 °F Dew Point: 57 °F Humidity: 87% Wind: South at 3.0 mph Pressure: 29.71 in Hourly Precipitation: - Graphs

Location: Crystal P (West Haven), Portland, OR

Updated: 2:11 PM PDT

Temperature: 61.3 °F Dew Point: 55 °F Humidity: 78% Wind: South at 5.8 mph Pressure: 29.32 in Hourly Precipitation: 0.00 in Graphs

Location: West Portland Park, Portland, OR

Updated: 2:09 PM PDT

Temperature: 58.9 °F Dew Point: 53 °F Humidity: 82% Wind: SSE at 1.0 mph Pressure: 29.74 in Hourly Precipitation: 0.00 in Graphs

Location: Ardenwald Station #1, Portland, OR

Updated: 2:09 PM PDT

Temperature: 62.5 °F Dew Point: 59 °F Humidity: 87% Wind: Calm Pressure: 29.77 in Hourly Precipitation: 0.00 in Graphs

Location: Garden Home, Portland, OR

Updated: 2:11 PM PDT

Temperature: 62.4 °F Dew Point: 58 °F Humidity: 84% Wind: ESE at 2.5 mph Pressure: 29.77 in Hourly Precipitation: 0.00 in Graphs

Location: Mt Tabor, Portland, OR

Updated: 2:10 PM PDT

Temperature: 62.2 °F Dew Point: 58 °F Humidity: 86% Wind: South at 2.0 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Graphs

Location: Raleigh Hills, Beaverton, OR

Updated: 2:11 PM PDT

Temperature: 63.1 °F Dew Point: 55 °F Humidity: 75% Wind: SW at 8.1 mph Pressure: 29.80 in Hourly Precipitation: 0.00 in Graphs

Location: Humboldt, Portland, OR

Updated: 2:11 PM PDT

Temperature: 65.3 °F Dew Point: 59 °F Humidity: 80% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Graphs

Location: Portland, OR

Updated: 2:11 PM PDT

Temperature: 58.3 °F Dew Point: 54 °F Humidity: 85% Wind: West at 6.0 mph Pressure: 29.70 in Hourly Precipitation: 0.00 in Graphs

Location: Portland - SE Lafayette, Portland, OR

Updated: 1:50 PM PDT

Temperature: 57.6 °F Dew Point: - Humidity: 93% Wind: North at 5.8 mph Pressure: 29.54 in Hourly Precipitation: - Graphs

Location: Leahy & NW 94th Tr., Portland, OR

Updated: 1:17 PM PDT

Temperature: 59.4 °F Dew Point: 56 °F Humidity: 89% Wind: SW at 4.0 mph Pressure: 29.78 in Hourly Precipitation: 0.00 in Graphs

Location: East Beaverton, Beaverton, OR

Updated: 2:11 PM PDT

Temperature: 64.5 °F Dew Point: 58 °F Humidity: 80% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Graphs

Location: Forest Heights, Portland, OR

Updated: 2:00 PM PDT

Temperature: 58.5 °F Dew Point: 49 °F Humidity: 70% Wind: SSE at 3.8 mph Pressure: 29.80 in Hourly Precipitation: 0.00 in Graphs

Location: Beaumont-Wilshire, Portland, OR

Updated: 2:11 PM PDT

Temperature: 61.6 °F Dew Point: 55 °F Humidity: 80% Wind: WNW at 4.0 mph Pressure: 29.77 in Hourly Precipitation: 0.00 in Graphs

Location: Milwaukie, OR

Updated: 2:11 PM PDT

Temperature: 63.5 °F Dew Point: 59 °F Humidity: 84% Wind: South at 3.0 mph Pressure: 29.74 in Hourly Precipitation: 0.00 in Graphs

Location: Hollywood-Rose City Park, Portland, OR

Updated: 1:59 PM PDT

Temperature: 61.9 °F Dew Point: 58 °F Humidity: 88% Wind: Calm Pressure: 29.77 in Hourly Precipitation: - Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Portland or 
931 am PDT Monday Oct 20 2014 


Synopsis...a slow moving cold front will continue eastward 
today...moving across the Cascades by afternoon. Behind the 
front...expect showers with perhaps an embedded thunderstorm or two 
along the coast. Showers will decrease tonight and Tuesday morning 
as the associated upper trough moves east of the forecast area. The 
next front will be quite wet as it slowly moves north to south 
through our forecast area Tuesday night and Wednesday...with rain 
likely lingering into Thursday. This front may also produce strong 
coastal winds. Another front is expected by the weekend. 


&& 


Update...low pressure trough axis has pushed just inside 130w along 
the pacnw coast. The back edge of a north/S oriented front is located 
just west of I-5 with rain bands to the east transitioning to 
showers off to the west. Energy diving south along the base of the 
trough will maintain the slow eastward progression of the front. 
Still appears that best chance for thunderstorms will be over the 
waters this afternoon and evening with an outside threat of seeing 
one develop inland this afternoon and evening. Only significant 
change was to push the text wording over to Post frontal shower and 
thunderstorm coverage wording. 


An early look at morning model run data maintains confidence in 
another slow moving and moisture laden front crossing the area over 
the next few days. Current quantitative precipitation forecast forecast looks fairly good against 
the recent observation. Esrl reforecast analogs of similar past events 
provide similar quantitative precipitation forecast amounts and pattern giving further confidence of 
total rain for the next 72 hours. As mentioned below and in our 
social media posts...its time to ensure drains and culverts are 
ready to receive a prolonged several hour period of moderate and 
briefly heavy rain. Updated grids are available on the web with text 
products to follow shortly. /Jbonk 


&& 


Previous disc... /issued 226 am PDT Monday Oct 20 2014/ 


Short term...today through Wednesday...a cold front is inching its 
way eastward across western Washington and Oregon early this 
morning. Mainly light rain developed along the coast Sunday evening 
and has spread as far inland as the Interstate 5 corridor early this 
morning. Expect the light rain to continue to spread eastward into 
the Cascades this morning...perhaps becoming a little heavier as 
another vortmax travels northward along the front. Behind the 
front...rain will taper to showers along the coast this morning and 
inland by afternoon. Latest model runs have been slowing down the 
cold pool aloft...with it forecast to move across the forecast area 
overnight rather than this afternoon. This slower timing limits 
instability a bit...keeping most convection rather shallow. Still 
cannot rule out a stray lightning strike or two this afternoon...but 
the best chance will be along the coast. 


00z NAM shows some decent q-vector convergence and residual 
deformation as the upper trough axis moves through this evening... 
which could keep decent shower coverage into the the evening hours. 
The upper trough axis then shifts east of the Cascades overnight with 
showers likely dwindling after midnight into Tuesday morning. The cold 
pool with this system is not all that impressive...850 mb temperatures get 
down to around +3 degree c with 1000-500 mb thicknesses around 544 
decameters Tuesday morning. Thus snow levels will have a hard time 
getting much below 6000 feet...and by then shower coverage will be 
decreasing anyway. Perhaps some of the higher ski resorts will get a 
dusting of snow but that is about it. 


Tuesday may actually turn out to be a decent day especially for our 
southern zones. Shortwave ridging develops aloft...which should dry 
things out for most of our forecast area aside from the north coast. 
Eugene and much of Lane County may break out into some sunshine for 
the afternoon...allowing temperatures to push well into the 60s...perhaps 
even making a run for 70 degrees in some spots. 


Meanwhile the next frontal system will be strengthening over the NE 
Pacific and approaching the Washington and northern Oregon coast Tuesday 
afternoon and evening. This front will be a slow mover...with 
conditions favorable for cyclogenesis along the front which would in 
turn slow the front further. Depending on where and when waves of low 
pressure develop along the front...strong winds may occur along the 
beaches and headlands...especially for our S Washington/north or coast zones. 
Models differ on where and when lows will develop along the front... 
but as an example the 06z NAM develops a 994 mb low with an 
associated coastal jet producing 950 mb winds as high as 60-65 knots 
as far south as Newport by midnight Tuesday night. Then the 06z NAM has 
an additional 998 mb low developing along the front by Wednesday afternoon 
with another round of 50 kt+ winds at 950 mb along the Oregon coast. 
For now suffice it to say there is a decent potential for strong 
winds at times along the coast...particularly the beaches and 
headlands...Tuesday night through Wednesday night. 


Models also remain consistent in showing this front will have access 
to abundant moisture with a deepening atmospheric river developing as 
it approaches the coast. Moisture transport is impressive in all 
model solutions...and it shows in the model quantitative precipitation forecast. With waves of low 
pressure developing along the front...orographic enhancement will be 
strong at times for south-favored slopes. For now...our quantitative precipitation forecast forecast 
calls for 2 to 5 inches throughout the forecast area by the time rain 
tapers off Thursday. Heaviest rain will be in the Coast Range and the 
S Washington Cascades. This may be enough to cause some flood threat for our 
more responsive rivers such as the Grays River draining out of the 
Willapa Hills. Of course we will monitor this closely and will have a 
better idea on the rainfall distribution as we get closer to the 
event.Weagle 


Long term...Thursday through Sunday...Thursday will likely be the 
tail end of our midweek rain event as the frontal system sags 
further south and weakens over northern California. Medium range 
guidance continue to struggle with how to handle the late week and 
weekend period...with the 00z GFS/ECMWF/Gem seeming to trend toward 
shifting the longwave pattern to favor troughing over western North 
America. This would be a significant shift from the overall longwave 
ridging pattern that has dominated the west for the past several 
months. As such...the 00z GFS/European model (ecmwf) now bring another upper trough 
across the Pacific northwest for more showers and cool temperatures through the 
weekend. Am a bit skeptical of this large scale pattern shift... 
especially considering the large pool of above normal sea surface 
temperatures over the NE Pacific. Therefore we remain a bit conservative... 
keeping probability of precipitation/temperatures closer to climatology over the weekend than these 00z 
models would suggest. Weagle 


&& 


Aviation...with front pushing slowly inland today precipitation 
will become more convective in nature. Expect VFR conditions to be 
more dominant today and tonight...but with occasional MVFR ceilings and 
visibilities generally associated with areas of rainfall and 
showers. Expect mountains/passes to be frequently obscured. Isolated 
thunderstorms will be possible near the coast through 02z. 


Kpdx and approaches...VFR today and tonight...but with occasional 
MVFR conditions mostly associated with showers. Showers will be less 
frequent tonight after 02z. 
&& 


Marine...S winds behind a cold front that moved ashore this early 
this morning will remain near small craft criteria into Tuesday...with 
the main threat of wind gusts in the 20 to 25 knots range coming in 
areas of showers. West swell of 10 to 14 feet around 15 second is expected 
to only slowly subside through Tuesday. 


Winds expected to pick up during the day Tuesday into Tuesday night as a 
frontal system approaches. Winds are likely to reach gale force 
throughout the waters from Tuesday afternoon through much of Tuesday 
night...until a cold front moves southeast into the waters. The westerly 
swell will continue to subside Tuesday and Tuesday night...but seas are 
likely to build some and become steeper Tuesday night due to the 
southerly gales. Seas may approach 20 feet Tuesday night...most likely 
over the outer waters. 
&& 


Pqr watches/warnings/advisories... 
or...none. 
Washington...none. 
Pz...Small Craft Advisory for winds until 6 PM PDT Tuesday for 
coastal waters from Cape Shoalwater Washington to Florence or out 
60 nm. 


Small Craft Advisory for hazardous seas until 6 PM PDT 
Tuesday for coastal waters from Cape Shoalwater Washington to 
Florence or out 60 nm. 


Small Craft Advisory for rough Columbia River bar until 
6 PM PDT Tuesday. 


&& 


$$ 


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This discussion is for northwest Oregon and southwest Washington 
from the Cascade crest to 60 nautical miles offshore. The area is 
commonly referred to as the forecast area. 
&& 






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