Juneau, Alaska Weather Conditions

Your Weather

To update your location please enter your ZIP code, city, state, airport code or country in the field below. Weather by E-mail: Forecast storm alerts. Weather E-Mail Alert Sign Up »

Current Conditions

  • 31°
  • Overcast
  • Wind: Calm
  • Humidity: 96%
  • Visibility: 10.0 miles
  • Dew Point: 30°
  • Pressure: 29.58 in. -

Select a Section

Click a section below for more information.

Next 12 Hours

6  am
9  am
12  pm
3  pm
6  pm
Chance of Snow
Chance of Snow
Chance of Snow
Chance of Snow
Overcast
Overcast
Overcast
Overcast
Chance of Snow
Chance of Snow
32°
32°
36°
36°
34°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Chance of Snow
  • High: 36 °
  • Low: 32 °
  • Chance of Snow
  • Friday
  • Chance of Snow
  • High: 36 °
  • Low: 32 °
  • Chance of Snow
  • Saturday
  • Chance of Snow
  • High: 36 °
  • Low: 32 °
  • Chance of Snow
  • Sunday
  • Chance of Snow
  • High: 37 °
  • Low: 32 °
  • Chance of Snow
  • Monday
  • Chance of Rain
  • High: 39 °
  • Low: 32 °
  • Chance of Rain

Forecast for Juneau, Alaska

Updated: 6:00 AM AKST on December 18, 2014

  • Thursday

    Overcast with a chance of snow. Fog early. High of 36F with a windchill as low as 23F. Winds from the NE at 10 to 15 mph. Chance of snow 20%.

  • Thursday Night

    Overcast with a chance of snow and rain showers. Low of 32F with a windchill as low as 25F. Winds from the NE at 5 to 15 mph. Chance of snow 40%.

  • Friday

    Overcast with a chance of snow and rain showers. High of 36F with a windchill as low as 27F. Winds from the ENE at 5 to 10 mph. Chance of snow 60%.

  • Friday Night

    Overcast with a chance of snow and rain showers, then snow after midnight. Low of 32F with a windchill as low as 25F. Winds from the ENE at 5 to 15 mph. Chance of snow 80% with accumulations up to 2 in. possible.

  • Saturday

    Overcast with a chance of snow and rain showers, then a chance of snow and a chance of rain in the afternoon. High of 36F with a windchill as low as 25F. Winds from the ENE at 10 to 15 mph. Chance of snow 70% with accumulations up to 2 in. possible.

  • Saturday Night

    Overcast with a chance of snow and rain showers. Low of 32F with a windchill as low as 25F. Winds from the East at 5 to 15 mph. Chance of snow 60% with accumulations up to 4 in. possible.

  • Sunday

    Overcast with a chance of snow and rain showers, then a chance of rain in the afternoon. High of 37F. Winds from the SE at 5 to 10 mph. Chance of precipitation 30% .

  • Sunday Night

    Overcast with a chance of rain. Low of 32F. Winds from the SE at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.5 in. possible.

  • Monday

    Overcast with a chance of rain. High of 39F. Winds from the SE at 5 to 10 mph. Chance of rain 50%.

  • Monday Night

    Overcast with a chance of rain. Low of 32F. Winds from the ESE at 5 to 10 mph. Chance of rain 60% with rainfall amounts near 0.3 in. possible.

  • Tuesday

    Mostly cloudy with a chance of snow. High of 37F. Winds less than 5 mph. Chance of snow 50%.

  • Tuesday Night

    Partly cloudy. Low of 25F. Winds less than 5 mph.

  • Wednesday

    Overcast with a chance of snow. High of 34F. Winds less than 5 mph. Chance of snow 20%.

  • Wednesday Night

    Mostly cloudy with a chance of rain. Low of 23F. Winds less than 5 mph. Chance of rain 20%.

  • Thursday

    Overcast with a chance of snow. Fog early. High of 36F. Winds less than 5 mph. Chance of snow 50% with accumulations up to 1 in. possible.

  • Thursday Night

    Overcast with a chance of snow. Fog overnight. Low of 19F. Winds less than 5 mph. Chance of snow 40% with accumulations up to 1 in. possible.

  • Friday

    Overcast with a chance of a thunderstorm. Fog early. High of 27F with a windchill as low as 12F. Winds from the NE at 5 to 10 mph. Chance of rain 20%.

  • Friday Night

    Partly cloudy. Low of 19F. Winds from the NE at 5 to 10 mph.

  • Saturday

    Clear. High of 25F with a windchill as low as 10F. Winds from the NE at 5 to 10 mph.

  • Saturday Night

    Clear. Low of 18F with a windchill as low as 10F. Winds from the NE at 5 to 15 mph.

  • Sunday

    Clear. High of 25F with a windchill as low as 9F. Winds from the NE at 10 to 15 mph.

  • Sunday Night

    Clear. Low of 18F with a windchill as low as 10F. Winds from the NE at 5 to 15 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

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

Updated: 5:48 AM AKST

Temperature: 32 °F Dew Point: 32 °F Humidity: 100% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

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

Updated: 5:55 AM AKST

Temperature: 32 °F Dew Point: 29 °F Humidity: 88% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

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

Updated: 6:34 AM AKST

Temperature: 32 °F Dew Point: 32 °F Humidity: 100% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: Dimond Park, Juneau, AK

Updated: 7:11 AM AKST

Temperature: 30.4 °F Dew Point: 30 °F Humidity: 99% Wind: SW at 2.7 mph Pressure: 29.43 in Hourly Precipitation: - Windchill: 30 °F Graphs

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

Updated: 6:40 AM AKST

Temperature: 31 °F Dew Point: 31 °F Humidity: 100% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

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

Updated: 6:20 AM AKST

Temperature: 32 °F Dew Point: 30 °F Humidity: 92% Wind: East at 1 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: West Juneau, Juneau, AK

Updated: 7:00 AM AKST

Temperature: 33.3 °F Dew Point: 32 °F Humidity: 96% Wind: WSW at 2.0 mph Pressure: 29.57 in Hourly Precipitation: 0.00 in Windchill: 33 °F Graphs

Location: Blueberry Hills, Juneau, AK

Updated: 7:05 AM AKST

Temperature: 32.4 °F Dew Point: 29 °F Humidity: 86% Wind: Calm Pressure: 29.60 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

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

Updated: 6:26 AM AKST

Temperature: 33 °F Dew Point: 29 °F Humidity: 84% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 33 °F Graphs

Location: South Lena Point, Juneau, AK

Updated: 7:17 AM AKST

Temperature: 34.9 °F Dew Point: 32 °F Humidity: 91% Wind: Calm Pressure: 30.52 in Hourly Precipitation: 0.00 in Windchill: 35 °F Graphs

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

Updated: 6:24 AM AKST

Temperature: 32 °F Dew Point: 31 °F Humidity: 96% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

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

Updated: 7:13 AM AKST

Temperature: 31.3 °F Dew Point: 30 °F Humidity: 95% Wind: Calm Pressure: 29.19 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: MesoWest Camp 17 at Lemon Glacier AK US MISC, Juneau, AK

Updated: 6:00 AM AKST

Temperature: 15 °F Dew Point: 14 °F Humidity: 95% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 15 °F Graphs

Location: MesoWest Juneau Icefield at Camp 10-Nunat AK US MISC, Juneau, AK

Updated: 6:00 AM AKST

Temperature: 20 °F Dew Point: 12 °F Humidity: 69% Wind: WNW at 3 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 20 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Southeast Alaska forecast discussion 
National Weather Service Juneau Alaska 
541 am akst Thursday Dec 18 2014 


Short term...strong weather front moving north will spread storm 
force winds Thursday across much of the eastern Gulf waters and 
high winds gusting to around 60 miles per hour for western Prince of Wales 
Island. Lower pressures reported by buoys to the south overnight 
suggest a stronger system than what models have indicated. Thus 
preferred the slower progression of the European model (ecmwf) and the GFS. While 
the NAM was even slower, it was also much weaker with the triple 
point low/wave, and thus was discounted early. 


A much weaker front brought some very light rain to the 
southern/central Panhandle overnight, and its approach from the 
south helped flip winds across the north yesterday afternoon. With 
parallel flow across the Juneau area, light winds, and a nighttime 
inversion, fog became dense yesterday evening. However, some mixing 
associated with the weak front moving northward will help continue 
to thin out the fog through the morning. 


Gusty winds have already developed across much of the Panhandle, 
both pre-frontal in the southern Panhandle and responsive outflow 
winds in the north. We still expect gales over northern Lynn 
Canal and Cross Sound later this morning. Some outflow winds are 
possible for downtown Juneau, but not completely sold on it. 
Higher resolution nam12 has a weak short-wave lifting northward 
this morning that may unleash some mountain wave activity this 
afternoon. In addition high res nmm and arw both calling for some 
higher wind speeds in vicinity of Salisbury ridge peaking this 
afternoon and diminishing this evening. Covered this with gusts of 
35 miles per hour this afternoon diminishing in the evening. 


Moving down south...a low level 925 mb jet of 65 knots associated 
with the passing storm should be enough to generate storm force 
winds that will lift northward from 41 this morning into 42, 43, 
and 310 through the day. While winds will be strong with gusts to 
around 50 miles per hour for the southern Inner Channels and Baranof Island, 
western Prince of Wales will be most exposed to these frontal 
winds. At this point, winds should rise through the early morning 
hours, peaking to around 60 miles per hour around midday before diminishing 
late in the afternoon. All models are suggesting a third triple 
point forming south of the storm force low that will follow 
Thursday night. However, the NAM seems to take it much farther 
west...Aka around Dixon Entrance while the European model (ecmwf) and GFS swing it 
much farther east into hecate Strait safely away from the southern 
Panhandle. If NAM is credible, then winds may last late into the 
afternoon for zone 27, and thus the warning expiration time 
of 6 PM is good given slight uncertainty. In the system's Lee, 
there will be hardly a break as a new front approaches from the 
south late Thursday night keeping gales blowing across much of the 
outside waters. 


Rain will increase across the south with the approach of the storm 
force front. Given outflow winds in the north, reduced the 
likelihood of snow for Juneau and points north. In the wake of the 
front, winds will turn a little more southerly and allow for more 
moisture to extend northward. This should translate into an inch 
of snow possible for Gustavus, Hoonah, and Juneau tonight. Quantitative precipitation forecast 
will be light, and in some locations this may be overkill. In any 
event, rain will intensify for areas south of Frederick Sound 
Thursday night. 


European model (ecmwf) and GFS were preferred models. Forecast confidence good. 


Long term...upper level low associated with the Thursday system will 
weaken by Friday morning as it retrogrades to the western Gulf. 
Despite this flow will remain onshore and diffluent aloft...meaning 
staying wet for much of the extended forecast. 


Our weather will be dictated by waves of vorticity and troughs 
rotating around the parent low in the western Gulf under this active 
onshore pattern. As mentioned above...a frontal trough will move 
into the southeast Gulf Friday morning with gale force winds. The trough 
axis has sharpened in the latest model output which means that 
winds on the north side of the trough will be offshore with north 
winds through the inside waters and out of interior passes. The 
north winds will keep temperatures lower for snow...however the 
offshore flow will cause downsloping/shadowing and limit pop/qpf. 
Despite this have kept likely probability of precipitation in for Friday over the north 
but snowfall amounts look to be less than 1 inch during the day. 
The southern outer coastal areas will see rain and temperatures in 
the low 40s. Friday night and Saturday probability of precipitation are a little higher 
and snowfall amounts could be 1-2" every 12hrs for 
Haines/Skagway/Juneau Valley North/Hyder. However this flow 
pattern will continually bring in warm/moist air from the Gulf 
which will complicate the p-type forecast. Generally expecting all 
rain south of Hoonah with the exception of Hyder. Have a lot of 
rain and snow mixed in the forecast text for the north/central 
areas. This is in part due to the zones having colder interior 
areas at slightly higher elevation where snow is more likely to 
occur. Otherwise think that the precipitation is more likely to be rain 
with snow mixed in at times and with little to no accumulation in 
the main populations areas. 


Toward the middle of next week the upper level pattern looks to 
change as a ridge of high pressure moves into the Gulf. This would 
shift flow to a more dry northwesterly direction. Hard to call this a pattern 
change since the ridge looks be progressive moving to the east 
making our "dry" period short-lived. Timing of this will likely be 
adjusted some as time gets closer. 


Used an ensemble approach for pressure with an emphasis on the 
European model (ecmwf). Main changes were to increase wind speeds through the inside 
waters with the frontal trough in the short/Middle Range. Then kept 
the extended forecast largely in tact. 


&& 


Ajk watches/warnings/advisories... 
public...High Wind Warning until 6 PM akst this evening for akz027. 
Strong wind through this afternoon for akz023-028. 
Marine...Storm Warning for pkz041>043. 
Gale Warning for pkz012-022-033-036-051-052. 
Small Craft Advisory for pkz011-013-021-031-032-034-035. 
Small Craft Advisory due to seas for pkz053. 


&& 


$$ 


Jwa/Ferrin 


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



National Weather Service Glossary of Abbreviations

Non-Expanded Version (with abbreviations)

Powered by the Weather Underground, Inc.