Juneau, Alaska Weather Conditions

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Current Conditions

  • 44°
  • Scattered Clouds
  • Wind: Calm
  • Humidity: 89%
  • Visibility: 10.0 miles
  • Dew Point: 41°
  • Pressure: 29.69 in. -

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Next 12 Hours

4  pm
7  pm
10  pm
1  am
4  am
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Partly Cloudy
Partly Cloudy
45°
39°
36°
36°
36°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Saturday
  • Partly Cloudy
  • High: 46 °
  • Low: 32 °
  • Partly Cloudy
  • Sunday
  • Rain
  • High: 45 °
  • Low: 34 °
  • Rain
  • Monday
  • Chance of Rain
  • High: 43 °
  • Low: 28 °
  • Chance of Rain
  • Tuesday
  • Partly Cloudy
  • High: 39 °
  • Low: 28 °
  • Partly Cloudy
  • Wednesday
  • Chance of Snow
  • High: 39 °
  • Low: 30 °
  • Chance of Snow

Forecast for Juneau, Alaska

Updated: 7:00 AM AKDT on October 25, 2014

  • Saturday

    Partly cloudy. Fog early. High of 46F. Winds less than 5 mph.

  • Saturday Night

    Clear in the evening, then partly cloudy. Low of 32F. Winds less than 5 mph.

  • Sunday

    Mostly cloudy with a chance of rain in the afternoon. High of 45F. Winds less than 5 mph. Chance of rain 30%.

  • Sunday Night

    Overcast with rain. Low of 34F. Winds less than 5 mph. Chance of rain 90% with rainfall amounts near 0.4 in. possible.

  • Monday

    Overcast with a chance of rain in the morning, then partly cloudy. High of 43F. Winds from the NNE at 5 to 10 mph. Chance of rain 20%.

  • Monday Night

    Clear. Low of 28F. Winds from the NE at 10 to 15 mph.

  • Tuesday

    Clear. High of 39F with a windchill as low as 21F. Winds from the NE at 10 to 15 mph.

  • Tuesday Night

    Mostly cloudy. Low of 28F. Winds from the NE at 5 to 10 mph.

  • Wednesday

    Mostly cloudy with a chance of snow and rain showers in the morning, then overcast with a chance of rain. High of 39F with a windchill as low as 27F. Winds from the ENE at 5 to 10 mph. Chance of precipitation 50% .

  • Wednesday Night

    Partly cloudy with a chance of rain. Low of 30F. Winds from the East at 5 to 10 mph. Chance of rain 40%.

  • Thursday

    Overcast. High of 43F. Winds from the NNE at 5 to 10 mph.

  • Thursday Night

    Mostly cloudy. Low of 34F. Winds less than 5 mph.

  • Friday

    Overcast. High of 41F. Winds less than 5 mph.

  • Friday Night

    Overcast. Low of 32F. Winds less than 5 mph.

  • Saturday

    Overcast. High of 41F. Winds less than 5 mph.

  • Saturday Night

    Mostly cloudy. Low of 32F. Winds less than 5 mph.

  • Sunday

    Partly cloudy with a chance of rain. High of 43F. Winds from the ESE at 5 to 10 mph. Chance of rain 20%.

  • Sunday Night

    Mostly cloudy with a chance of snow. Low of 32F. Winds from the ESE at 5 to 10 mph. Chance of snow 40%.

  • Monday

    Overcast with a chance of rain. High of 43F. Winds from the ESE at 5 to 10 mph. Chance of rain 40%.

  • Monday Night

    Mostly cloudy with a chance of snow. Low of 34F. Winds from the ESE at 5 to 10 mph. Chance of snow 40%.

  • Tuesday

    Mostly cloudy with a chance of rain. High of 43F. Winds from the ESE at 5 to 10 mph. Chance of rain 40%.

  • Tuesday Night

    Mostly cloudy with a chance of rain. Low of 30F. Winds from the ESE at 5 to 10 mph. Chance of rain 40%.

  • Wednesday

    Clear. High of 41F. Winds from the ESE at 5 to 10 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: MISC Lemon Creek (Juneau), AK FAA, Juneau, AK

Updated: 4:10 PM AKDT

Temperature: 46 °F Dew Point: 45 °F Humidity: 96% Wind: WSW at 2 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: AKDOT North Douglas Highway MP 4, Juneau, AK

Updated: 4:25 PM AKDT

Temperature: 39 °F Dew Point: 36 °F Humidity: 87% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: MISC North Douglas Island (Juneau), AK FAA, Juneau, AK

Updated: 4:14 PM AKDT

Temperature: 45 °F Dew Point: 44 °F Humidity: 96% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: MISC NWS Office, Juneau, AK FAA, Juneau, AK

Updated: 4:18 PM AKDT

Temperature: 41 °F Dew Point: 41 °F Humidity: 100% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: AKDOT Glacier Highway/Egan Drive @ MP 3, Juneau, AK

Updated: 4:20 PM AKDT

Temperature: 42 °F Dew Point: 37 °F Humidity: 83% Wind: WNW at 1 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Auke Bay, Juneau, AK

Updated: 5:01 PM AKDT

Temperature: 39.5 °F Dew Point: 40 °F Humidity: 100% Wind: Calm Pressure: 29.60 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: West Juneau, Juneau, AK

Updated: 5:00 PM AKDT

Temperature: 39.2 °F Dew Point: 39 °F Humidity: 98% Wind: Calm Pressure: 29.67 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: Blueberry Hills, Juneau, AK

Updated: 4:54 PM AKDT

Temperature: 38.7 °F Dew Point: 39 °F Humidity: 100% Wind: West at 1.0 mph Pressure: 29.71 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: AKDOT Thane Road Snow Slide Gulch @ MP 1.9, Juneau, AK

Updated: 4:27 PM AKDT

Temperature: 42 °F Dew Point: 41 °F Humidity: 96% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: South Lena Point, Juneau, AK

Updated: 5:02 PM AKDT

Temperature: 45.1 °F Dew Point: 42 °F Humidity: 89% Wind: Calm Pressure: 30.64 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: AKDOT Glacier Highway @ Cohen Drive MP 21, Auke Bay, AK

Updated: 4:22 PM AKDT

Temperature: 41 °F Dew Point: 39 °F Humidity: 91% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: 25 mi. Happy Dog Sub., Juneau, AK

Updated: 4:58 PM AKDT

Temperature: 42.3 °F Dew Point: 40 °F Humidity: 91% Wind: Calm Pressure: 29.30 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Southeast Alaska forecast discussion...corrected 
National Weather Service Juneau Alaska 
403 PM akdt Sat Oct 25 2014 


Short term...weakening low SW of haida gwaii will move southeast away 
from the area through sun. A low pressure trough over the eastern Gulf will 
push slowly inland over Southeast Alaska through sun. A weak low over the northwest 
Gulf will move to the NE Gulf Sun afternoon. Used blend of the 12z 
NAM with previous forecast for tonight and sun...although did 
blend in 15z sref for probability of precipitation. 


Main forecast concerns will be precipitation potential...and how much fog 
will be around especially tonight. Right now looks like scattered 
showers are over the eastern Gulf roughly west of a paya-buoy 46084 line. 
Think these showers will begin a slow eastward push as weak upper trough 
moves onshore tonight. The showers may get as far east as the pajn 
area by late tonight. Expect them to be fairly isolated over the 
Inner Channels though. Then...as a shortwave trough intensifies over 
the northern Gulf and pushes eastward sun...and low level trough moves 
inland...showers should be on the increase. Best lift should 
arrive for Sun afternoon over the northern area...and have probability of precipitation rising 
to likely for that period for much of the north. Weaker lift further S 
will mean less shower coverage but even the southern coastal area 
should get into some showers sun...especially in the afternoon. 
Only keeping the Hyder area out of any showers through Sun afternoon. 


As for the fog...there is a pocket of fog over the pajn area that 
is slowly eroding around the edges of the fog bank. The flow is 
not forecast to increase in the area tonight...and tide will be 
falling during the evening hours exposing more wet ground...so the 
fog will likely thicken again early this evening. May issue dense 
fog advisory for this evening in the pajn area. Big question is what 
happens later this evening and overnight as clouds move in. Think 
these clouds will help dissipate any remaining fog in the pajn 
area later tonight. Further S...patchy fog is likely to develop 
over the southern half of the area as winds die off tonight. There has 
been a lot of sunshine there today which helped dry out the lower 
levels some...so not expecting the fog to get too thick in most 
places down S. 


Otherwise...winds will diminish over the Inner Channels tonight as 
low to the S of the area moves away. Temperatures will be tricky 
especially over the north where clouds should move in later this 
evening. Decided to allow temperatures to drop quickly this evening for 
much of the northern area...then rise slowly overnight. Temperatures in some 
areas should drop below freezing...but rise above freezing as 
clouds move in later tonight. Any showers that do fall near sea 
level tonight and Sun morning should remain liquid as main 
freezing level is above 2000 feet. 


Long term...long range forecast starts out fairly quiet as the jet 
stream appears to be in a split flow pattern. The stronger 
southerly jet extends across the northern Pacific aimed at the 
Pacific northwest. Embedded in it is the remains of Hurricane Ana which 
will be south southwest of haida gwaii by sun evening. The 
northern branch is tied up by a low over the northern Bering Sea 
with only a much weaker part of it slipping into the northern Gulf 
and south central Alaska. The weaker part is accompanying a weak 
upper trough just ahead of a building ridge in the western Gulf. 
The building ridge and trough will briefly affect the the 
Panhandle on Monday but both features get quickly shoved out of the 
way by the Bering Sea upper low. This spells the end of the split 
flow pattern as the Bering Sea low plunges into the Gulf on Tuesday 
connecting the southern stream jet up with the northern stream by 
Wednesday. The resulting deep upper trough sticks around just to our 
west for Wednesday and Thursday bringing S upper flow to the Panhandle. 
Westerly upper flow again returns on Friday. 


At the surface, the weak upper trough on Sun night and Monday has 
enough vigor that most of the Panhandle will see rain showers out 
of this. Most areas are too warm for snow yet, but this trough is 
dragging down some more cool air from interior Alaska. Again 
nothing really cold yet but it will be enough to lower snow levels 
on the back side of the trough and form a 1020 mb high in the 
southern Yukon late Monday night. Areas like Skagway, Haines, and 
Yakutat may see some snow mixing in with the rain showers just 
before the precipitation ends late Sun night or early Monday morning as 
1000-850 mb thicknesses drop to near 1290 M Sun night. Any 
accumulations will be light. Meanwhile the southern Panhandle will 
be clipped by the system that holds the remains of Hurricane Ana 
on Monday. Not expecting much except for a few light rain bands as 
most of the tropical moisture and energy will remain south of the 
Panhandle. 


Focus then shifts north again as the cooler air dragged down by 
the upper trough settles in the southern Yukon setting up an 
outflow event through at least middle week. Northerly pressure 
gradients of around 6 mb between Juneau and Skagway will produce 
gale force winds for Lynn Canal and small craft winds for many of 
the other northern channels by the time Tuesday rolls around. Downtown 
Juneau and Douglas will have to be watched for a taku wind event as 
well. Cross barrier flow is forecast to increase to 35 to 45 knots on 
Tuesday. However the critical level is not very well defined or 
non-existent at this time so some gusty winds are expected but 
really high winds are not. The secondary effect of this outflow is 
that the northern two thirds of the Panhandle will dry and clear 
out. So the potential is there for some cold overnight lows 
through middle week. 


Past Tuesday model agreement suffers as they can not agree on how the 
low dropping from the Bering Sea pans out. The general consensus 
is that there will be a system with multiple low centers in the 
Gulf but exactly where and how strong is up for debate. The 
general Trent over the last 24 hours seems to be lining up more 
with the ensemble means with a general low somewhere in the 
central Gulf. This is a westward trend from what the previous 
forecast had. As for the Panhandle, precipitation returns sometime Wednesday or 
Wednesday night and will continue through the end of the week. Areas 
around Skagway, Haines, and Yakutat may be cool enough for snow 
at the beginning but will likely warm back up and change over to 
rain rather quickly except at higher elevations. 


Long range models were in decent agreement through around Tuesday. 
Decided on using the NAM and European model (ecmwf) for guidance through Tuesday as 
both had decent representation of the pressure gradient and 
outflow on Monday into Tuesday night. Past this point favored the wpc 
data with its use of ensemble means in the forecast as the 
operational models were displaying too much disagreement and 
consistency issues to get a confident forecast out of. 


&& 


Ajk watches/warnings/advisories... 
public...none. 
Marine...none. 


&& 


$$ 


Rwt/eal 


Visit US at http://www.Weather.Gov/Juneau 




















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