National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Portage, Portage Glacier (PATO)

Lat: 60.78°NLon: 148.83°WElev: 95ft.

Overcast

8°F

-13°C

Humidity 83%
Wind Speed Calm
Barometer 29.65 in (1004.3 mb)
Dewpoint 4°F (-16°C)
Visibility 10.00 mi
Last update 12 Jan 9:53 pm AKST
Extended Forecast for

Alyeska AK

  • Tonight

    Tonight: Snow likely, mainly after 3am. Mostly cloudy, with a temperature rising to around 17 by 5am. Calm wind. Chance of precipitation is 70%. Total nighttime snow accumulation of less than one inch possible.

    Low: 11 °F⇑

    Slight Chance
    Snow then
    Snow Likely

  • Tuesday

    Tuesday: Snow, mainly before noon. High near 22. Calm wind. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    High: 22 °F

    Snow then
    Chance Snow

  • Tuesday Night

    Tuesday Night: Scattered snow showers before 9pm, then a chance of snow, mainly after 3am. Mostly cloudy, with a low around 17. Calm wind. Chance of precipitation is 50%.

    Low: 17 °F

    Chance Snow

  • Wednesday

    Wednesday: Snow, mainly before noon, then scattered snow showers after 3pm. High near 19. Calm wind becoming southeast around 5 mph. Chance of precipitation is 80%.

    High: 19 °F

    Snow then
    Chance Snow

  • Wednesday Night

    Wednesday Night: Scattered snow showers before midnight, then snow, mainly after midnight. Low around 16. East wind around 5 mph. Chance of precipitation is 80%.

    Low: 16 °F

    Scattered
    Snow Showers
    then Snow

  • Thursday

    Thursday: Snow before noon, then snow and freezing rain between noon and 3pm, then snow after 3pm. The snow and freezing rain could be heavy at times. High near 34. East wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.

    High: 34 °F

    Snow then
    Wintry Mix

  • Thursday Night

    Thursday Night: Rain before 9pm, then snow between 9pm and midnight, then rain after midnight. The rain and snow could be heavy at times. Low around 34. Chance of precipitation is 100%.

    Low: 34 °F

    Rain/Snow
    then Heavy
    Rain

  • Friday

    Friday: Rain before 9am, then rain and snow between 9am and 3pm, then snow after 3pm. Cloudy, with a high near 38.

    High: 38 °F

    Rain/Snow

  • Friday Night

    Friday Night: Snow. Cloudy, with a low around 26.

    Low: 26 °F

    Snow

Detailed Forecast

Tonight
Snow likely, mainly after 3am. Mostly cloudy, with a temperature rising to around 17 by 5am. Calm wind. Chance of precipitation is 70%. Total nighttime snow accumulation of less than one inch possible.
Tuesday
Snow, mainly before noon. High near 22. Calm wind. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Tuesday Night
Scattered snow showers before 9pm, then a chance of snow, mainly after 3am. Mostly cloudy, with a low around 17. Calm wind. Chance of precipitation is 50%.
Wednesday
Snow, mainly before noon, then scattered snow showers after 3pm. High near 19. Calm wind becoming southeast around 5 mph. Chance of precipitation is 80%.
Wednesday Night
Scattered snow showers before midnight, then snow, mainly after midnight. Low around 16. East wind around 5 mph. Chance of precipitation is 80%.
Thursday
Snow before noon, then snow and freezing rain between noon and 3pm, then snow after 3pm. The snow and freezing rain could be heavy at times. High near 34. East wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.
Thursday Night
Rain before 9pm, then snow between 9pm and midnight, then rain after midnight. The rain and snow could be heavy at times. Low around 34. Chance of precipitation is 100%.
Friday
Rain before 9am, then rain and snow between 9am and 3pm, then snow after 3pm. Cloudy, with a high near 38.
Friday Night
Snow. Cloudy, with a low around 26.
Saturday
Snow likely, mainly before 3pm. Cloudy, with a high near 33.
Saturday Night
A chance of snow. Cloudy, with a low around 25.
Sunday
A chance of snow. Cloudy, with a high near 30.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 22.
M.L.King Day
A chance of snow. Partly sunny, with a high near 28.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Alyeska AK
 60.97°N 149.11°W (Elev. 197 ft)
Last Update:
9:45 pm AKST Jan 12, 2026
Forecast Valid:
9pm AKST Jan 12, 2026-6pm AKST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation