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

Portage, Portage Glacier (PATO)

Lat: 60.78°NLon: 148.83°WElev: 95ft.

Fair

8°F

-13°C

Humidity 69%
Wind Speed Vrbl 7 mph
Barometer 30.53 in (1034.2 mb)
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Wind Chill-3°F (-19°C)
Last update 21 Feb 11:53 pm AKST
Extended Forecast for

5 Miles NW Alyeska AK

  • Overnight

    Overnight: Mostly clear, with a low around 17. North wind around 10 mph.

    Low: 17 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 27. North wind 10 to 15 mph.

    High: 27 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a temperature rising to around 27 by 3am. North wind 10 to 15 mph.

    Low: 21 °F⇑

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 31. Northwest wind around 5 mph becoming west in the afternoon.

    High: 31 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Snow likely, mainly after midnight. Mostly cloudy, with a low around 19. South wind 5 to 15 mph becoming north after midnight. Chance of precipitation is 60%.

    Low: 19 °F

    Snow Likely

  • Tuesday

    Tuesday: A chance of snow before 3pm. Mostly cloudy, with a high near 25. West wind 15 to 20 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 50%.

    High: 25 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: A chance of snow between midnight and 3am. Mostly cloudy, with a low around -6. Chance of precipitation is 30%.

    Low: -6 °F

    Mostly Cloudy
    then Chance
    Snow

  • Wednesday

    Wednesday: A chance of snow between 9am and 3pm. Partly sunny, with a high near 0.

    High: 0 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around -18.

    Low: -18 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 17. North wind around 10 mph.
Sunday
Mostly sunny, with a high near 27. North wind 10 to 15 mph.
Sunday Night
Mostly cloudy, with a temperature rising to around 27 by 3am. North wind 10 to 15 mph.
Monday
Mostly sunny, with a high near 31. Northwest wind around 5 mph becoming west in the afternoon.
Monday Night
Snow likely, mainly after midnight. Mostly cloudy, with a low around 19. South wind 5 to 15 mph becoming north after midnight. Chance of precipitation is 60%.
Tuesday
A chance of snow before 3pm. Mostly cloudy, with a high near 25. West wind 15 to 20 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 50%.
Tuesday Night
A chance of snow between midnight and 3am. Mostly cloudy, with a low around -6. Chance of precipitation is 30%.
Wednesday
A chance of snow between 9am and 3pm. Partly sunny, with a high near 0.
Wednesday Night
Partly cloudy, with a low around -18.
Thursday
Mostly sunny, with a high near -6.
Thursday Night
Partly cloudy, with a low around -16.
Friday
Mostly sunny, with a high near 2.
Friday Night
Partly cloudy, with a low around -7.
Saturday
Partly sunny, with a high near 13.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NW Alyeska AK
 61.02°N 149.22°W (Elev. 4324 ft)
Last Update:
7:19 pm AKST Feb 21, 2026
Forecast Valid:
12am AKST Feb 22, 2026-6pm AKST Feb 28, 2026
 
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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