Portland, Oregon Weather Conditions

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Current Conditions

  • 51°
  • Clear
  • Wind: Calm
  • Humidity: 83%
  • Visibility: 10.0 miles
  • Dew Point: 46°
  • Pressure: 30.19 in. -

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Next 12 Hours

3  am
6  am
9  am
12  pm
3  pm
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
53°
50°
60°
74°
80°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Sunday
  • Clear
  • High: 82 °
  • Low: 57 °
  • Clear
  • Monday
  • Clear
  • High: 85 °
  • Low: 54 °
  • Clear
  • Tuesday
  • Mostly Cloudy
  • High: 75 °
  • Low: 51 °
  • Mostly Cloudy
  • Wednesday
  • Chance of Rain
  • High: 67 °
  • Low: 50 °
  • Chance of Rain
  • Thursday
  • Chance of Rain
  • High: 66 °
  • Low: 48 °
  • Chance of Rain

Forecast for Portland, Oregon

Updated: 8:43 PM PDT on April 30, 2016

  • Tonight

    Clear. Lows around 45. North wind 5 to 10 mph.

  • Sunday

    Sunny. Highs 80 to 85. Wind becoming northeast 5 to 15 mph 10 to 15 mph except east 15 to 15 mph near The Gorge.

  • Sunday Night

    Clear. Lows 50 to 55. East wind 5 to 15 mph. Gusts to 30 mph near The Gorge.

  • Monday

    Mostly sunny in the morning...then partly cloudy. Highs 80 to 85. East wind 5 to 15 mph with gusts to 30 mph near The Gorge...becoming southwest 10 to 15 mph late.

  • Monday Night

    Mostly cloudy with a 20 percent chance of showers and thunderstorms. Lows around 55. West wind 5 to 10 mph.

  • Tuesday

    Mostly cloudy. Slight chance of showers in the morning... then a chance of showers and a slight chance of thunderstorms in the afternoon. Highs around 70. Chance of precipitation 30 percent.

  • Tuesday Night

    Cloudy. Chance of showers and a slight chance of thunderstorms in the evening...then a chance of showers after midnight. Lows around 50. Chance of precipitation 50 percent.

  • Wednesday

    Cloudy. Chance of showers in the morning...then a chance of showers and a slight chance of thunderstorms in the afternoon. Highs 65 to 70. Chance of precipitation 50 percent.

  • Wednesday Night

    Cloudy with a 50 percent chance of showers. Lows 45 to 50.

  • Thursday

    Mostly cloudy with a 40 percent chance of showers. Highs around 65.

  • Thursday Night

    Mostly cloudy with a 20 percent chance of showers. Lows around 45.

  • Friday

    Partly sunny with a 20 percent chance of showers. Highs 65 to 70.

  • Friday Night

    Mostly cloudy in the evening...then partly cloudy. A 20 percent chance of showers. Lows 45 to 50.

  • Saturday

    Partly sunny. A 20 percent chance of showers in the morning. Highs 70 to 75.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Southwest Portland, Portland, OR

Updated: 2:50 AM PDT

Temperature: 54.0 °F Dew Point: 44 °F Humidity: 70% Wind: North at - Pressure: 30.26 in Hourly Precipitation: - Graphs

Location: Portland - West Hills, Portland, OR

Updated: 2:55 AM PDT

Temperature: 52.0 °F Dew Point: 44 °F Humidity: 73% Wind: WSW at 3.0 mph Pressure: 30.08 in Hourly Precipitation: 0.00 in Graphs

Location: Southwest Portland, Portland, OR

Updated: 2:52 AM PDT

Temperature: 51.1 °F Dew Point: 46 °F Humidity: 81% Wind: North at - Pressure: 30.24 in Hourly Precipitation: - Graphs

Location: Southwest Portland, Portland, OR

Updated: 2:52 AM PDT

Temperature: 54.3 °F Dew Point: 46 °F Humidity: 72% Wind: North at - Pressure: 30.24 in Hourly Precipitation: - Graphs

Location: Southwest Portland, Portland, OR

Updated: 2:52 AM PDT

Temperature: 57.9 °F Dew Point: 45 °F Humidity: 61% Wind: North at - Pressure: 29.96 in Hourly Precipitation: 0.00 in Graphs

Location: Hillsdale, Portland, OR

Updated: 2:44 AM PDT

Temperature: 53.5 °F Dew Point: 44 °F Humidity: 71% Wind: ENE at 1.0 mph Pressure: 30.27 in Hourly Precipitation: 0.00 in Graphs

Location: Southwest Portland, Portland, OR

Updated: 2:51 AM PDT

Temperature: 57.2 °F Dew Point: 44 °F Humidity: 60% Wind: North at - Pressure: 30.21 in Hourly Precipitation: - Graphs

Location: Hillsdale, Portland, OR

Updated: 2:39 AM PDT

Temperature: 51.4 °F Dew Point: 44 °F Humidity: 77% Wind: Calm Pressure: 29.96 in Hourly Precipitation: - Graphs

Location: Bridlemile, Portland, OR

Updated: 2:49 AM PDT

Temperature: 52.5 °F Dew Point: 44 °F Humidity: 72% Wind: East at 2.2 mph Pressure: 30.01 in Hourly Precipitation: - Graphs

Location: Southwest Portland, Portland, OR

Updated: 2:51 AM PDT

Temperature: 58.3 °F Dew Point: 44 °F Humidity: 59% Wind: North at - Pressure: 30.04 in Hourly Precipitation: - Graphs

Location: Hillsdale, Portland, OR

Updated: 2:55 AM PDT

Temperature: 53.1 °F Dew Point: 42 °F Humidity: 66% Wind: ENE at 2.2 mph Pressure: 29.56 in Hourly Precipitation: - Graphs

Location: Southwest Portland, Portland, OR

Updated: 2:51 AM PDT

Temperature: 58.3 °F Dew Point: 45 °F Humidity: 60% Wind: North at - Pressure: 29.96 in Hourly Precipitation: - Graphs

Location: Downtown Portland, Portland, OR

Updated: 2:51 AM PDT

Temperature: 55.9 °F Dew Point: 43 °F Humidity: 62% Wind: North at - Pressure: 30.06 in Hourly Precipitation: - Graphs

Location: West Hillsdale, Portland, OR

Updated: 2:54 AM PDT

Temperature: 51.8 °F Dew Point: 47 °F Humidity: 82% Wind: Calm Pressure: 30.33 in Hourly Precipitation: 0.00 in Graphs

Location: N of Bridlemile School, Portland, OR

Updated: 2:52 AM PDT

Temperature: 53.1 °F Dew Point: 44 °F Humidity: 71% Wind: Calm Pressure: 30.18 in Hourly Precipitation: 0.00 in Graphs

Location: Hillsdale, Portland, OR

Updated: 2:55 AM PDT

Temperature: 52.9 °F Dew Point: 45 °F Humidity: 75% Wind: Calm Pressure: 30.17 in Hourly Precipitation: 0.00 in Graphs

Location: Westerly, NW Portland, Portland, OR

Updated: 2:43 AM PDT

Temperature: 53.3 °F Dew Point: 45 °F Humidity: 73% Wind: Calm Pressure: 30.15 in Hourly Precipitation: - Graphs

Location: Downtown, Portland, OR

Updated: 2:51 AM PDT

Temperature: 50.7 °F Dew Point: 44 °F Humidity: 79% Wind: North at - Pressure: 30.12 in Hourly Precipitation: - Graphs

Location: Brooklyn, Portland, OR

Updated: 2:54 AM PDT

Temperature: 54.0 °F Dew Point: 48 °F Humidity: 79% Wind: Calm Pressure: 29.71 in Hourly Precipitation: 0.00 in Graphs

Location: Hillside, Portland, OR

Updated: 2:50 AM PDT

Temperature: 52.3 °F Dew Point: 43 °F Humidity: 71% Wind: North at - Pressure: 29.99 in Hourly Precipitation: - Graphs

Location: Arboretum Hills, Portland, OR

Updated: 2:55 AM PDT

Temperature: 53.1 °F Dew Point: 42 °F Humidity: 65% Wind: East at 4.7 mph Pressure: 29.29 in Hourly Precipitation: - Graphs

Location: Sylvan - Highlands - Southwest Hills, Portland, OR

Updated: 2:52 AM PDT

Temperature: 54.0 °F Dew Point: 44 °F Humidity: 68% Wind: North at - Pressure: 30.19 in Hourly Precipitation: 0.00 in Graphs

Location: Hayhurst, Portland, OR

Updated: 2:43 AM PDT

Temperature: 51.1 °F Dew Point: 43 °F Humidity: 74% Wind: Calm Pressure: 29.97 in Hourly Precipitation: - Graphs

Location: Pearl District, Portland, OR

Updated: 2:50 AM PDT

Temperature: 56.8 °F Dew Point: 45 °F Humidity: 65% Wind: North at - Pressure: 30.02 in Hourly Precipitation: - Graphs

Location: Multnomah Village, Portland, OR

Updated: 2:51 AM PDT

Temperature: 52.3 °F Dew Point: 46 °F Humidity: 79% Wind: North at - Pressure: 30.03 in Hourly Precipitation: - Graphs

Location: Sylvan Highlands, Portland, OR

Updated: 2:55 AM PDT

Temperature: 52.0 °F Dew Point: 42 °F Humidity: 69% Wind: West at 4.0 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Graphs

Location: Hosford - Abernethy, Portland, OR

Updated: 2:52 AM PDT

Temperature: 53.4 °F Dew Point: 47 °F Humidity: 78% Wind: North at - Pressure: 30.25 in Hourly Precipitation: - Graphs

Location: Sylvan Hilll, Portland, OR

Updated: 2:55 AM PDT

Temperature: 52.7 °F Dew Point: 42 °F Humidity: 68% Wind: Calm Pressure: 30.20 in Hourly Precipitation: 0.00 in Graphs

Location: South Burlingame, Portland, OR

Updated: 2:40 AM PDT

Temperature: 54.7 °F Dew Point: 44 °F Humidity: 67% Wind: Calm Pressure: 29.79 in Hourly Precipitation: 1.63 in Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Portland or 
903 PM PDT Sat Apr 30 2016 


Synopsis...an upper level ridge will continue to build tonight and 
Sunday over southwest Canada and the Pacific northwest with a low 
over the Great Basin...leading to a Rex block for dry and much 
warmer weather in southwest Washington and northwest Oregon under 
increasing offshore flow. A southerly wind reversal will result in 
cooler temperatures along the coast Monday. The approach of the next system 
off the coast will pull up some moisture and instability northward 
into northwest Oregon and southwest Washington late Monday and 
especially Monday night and Tuesday for a chance of some showers or 
thunderstorms. The system approaching from the west will finally 
push marine air more strongly inland Tuesday night and Wednesday 
with showers continuing...and possibly a thunderstorm over the 
Cascades. Unsettled weather will likely continue through the 
remainder of the coming work week...with some drying possible next 
weekend. 
&& 


Short term...the last remaining stratocumulus clouds over the higher 
terrain are clearing this evening as sunset has arrived and an upper 
ridge builds in north of our forecast area and sets up over 
southwest Canada and the Pacific northwest Sunday. This in 
combination with a low over the Great Basin will result in the 
formation of a Rex block...which will lead to much warmer and dry 
weather from increasing offshore flow over southwest Washington and 
northwest Oregon Sunday and Monday. Temperatures will likely stay below 
record values...but will reach the lower to middle 80s the next two 
days inland and possibly around 80 at the coast Sunday. 


A system will begin approaching from the west Monday which will 
increase the southerly flow over our forecast area. This will result 
in a southerly wind reversal and a stratus surge up the coast Monday 
with cooler temperatures spreading northward with it. Inland areas will 
still be very warm...but some moisture and instability will be drawn 
northward that will affect the Oregon Cascades later Monday and 
possibly a good part of southwest Washington and northwest Oregon 
Monday night and Tuesday. 


The marine surge along the coast looks very shallow...so inland 
penetration Monday night and Tuesday may be limited. Cooling inland 
on Tuesday into the lower to middle 70s or so may largely be due to the 
convective clouds and any showers. But this could also continue to 
keep the door open to a few thunderstorms Tuesday afternoon west of 
the Cascades should sufficient sunbreaks develop. Look for a stronger 
push of marine air Tuesday night and Wednesday as clouds and showers 
increase more from the offshore system. Tolleson 


Long term...no changes. Previous discussion follows... 
Tuesday night through Saturday. Broad upper trough remains over the 
eastern Pacific just off the California coast...providing for south 
to southwest flow aloft over the region. This will keep shower 
chances in place through Thursday. Thunder chances Tuesday night and 
Wednesday afternoon/evening will be greatest in the Cascades and 
foothills...but latest models suggest enough instability to keep a 
slight chance mention for the Willamette Valley. May not be enough of 
a trigger to tap into this...but given the potential in the model 
soundings feel a slight chance remains warranted. Expect some warming 
on Friday and Saturday...with perhaps some dry conditions... as the 
upper low migrates eastward into the Great Basin and high pressure 
building into the Gulf of Alaska as Rex block develops over the 
region. However...maintained the forecast along the lines suggested 
by a blend of models as the European model (ecmwf) continues to remain with a more wet 
solution and some spread in the GFS ensemble members. 
&& 


Aviation...increasing offshore flow should bring predominantly VFR 
conditions to all taf sites through 06z Monday. 5sm visibility at 
kast seems suspicious based on web cameras so kept them VFR even 
though the observations suggest otherwise. 


Kpdx and approaches...increasing offshore flow will bring VFR 
conditions through 06z Monday. Winds should switch from west to east 
around 19z Sunday. /Neuman 
&& 


Marine...a thermal trough over the south Oregon coast will continue 
to strengthen and build northward tonight. This is currently 
producing gusty 25 to 30 knots winds to the waters off the central 
Oregon coast. Due to the increase in winds...dominant periods have 
lowered and become wind dominated so issued a Small Craft Advisory 
for steep and hazardous seas through 3 am. Farther north...winds are 
lighter...but still likely gusting to 25 knots off the north Oregon 
coast. As the flow turns more offshore overnight...winds should relax 
across the inner waters. Current small craft advisories for winds 
cover this well. 


A southerly wind reversal will push up the coast Sunday night into 
Monday and could briefly bring a period of 20 to 25 knots wind gusts. 
Not sure a Small Craft Advisory will be needed though. Otherwise...an 
upper level trough splitting and heading south of the region should 
bring a return to a northerly wind pattern towards the middle of next 
week with Small Craft Advisory level wind gusts of 25 to 30 knots 
possible. High pressure then may shift more squarely over the 
northeast Pacific late in the week and focus northerly winds across 
the central Oregon waters. Even though seas look to remain under 10 
feet indefinitely...seas will likely become fresh swell/wind dominated 
during the middle to latter half of the work week so it still looks a 
bit choppy and rough for smaller boats. /Neuman 
&& 


Pqr watches/warnings/advisories... 
or...none. 
Washington...none. 
Pz...Small Craft Advisory for winds until 9 am PDT Sunday for waters 
from Cape Shoalwater Washington to Florence or from 10 to 60 nm. 


Small Craft Advisory for winds until midnight PDT tonight for 
coastal waters from Cape Shoalwater Washington to Florence or out 
10 nm. 


Small Craft Advisory for hazardous seas until 3 am PDT Sunday 
for coastal waters from Cascade Head or to Florence or out 
60 nm. 


&& 


$$ 


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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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