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.

A Few Clouds

14°F

-10°C

Humidity 84%
Wind Speed Calm
Barometer 30.18 in (1022.1 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Last update 18 Feb 1:53 am AKST
Extended Forecast for

5 Miles NW Alyeska AK

  • Overnight

    Overnight: A slight chance of snow after 3am. Mostly cloudy, with a low around 16. Northeast wind around 5 mph becoming east. Chance of precipitation is 20%.

    Low: 16 °F

    Slight Chance
    Snow

  • Wednesday

    Wednesday: Snow, mainly after 9am. High near 19. Southeast wind around 10 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    High: 19 °F

    Snow

  • Wednesday Night

    Wednesday Night: Snow, mainly before 9pm. Low around 13. South wind 5 to 10 mph becoming northwest 10 to 15 mph after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 13 °F

    Snow then
    Chance Snow

  • Thursday

    Thursday: Areas of blowing snow. Mostly sunny, with a high near 16. Northwest wind 25 to 30 mph increasing to 35 to 40 mph in the afternoon. Winds could gust as high as 50 mph.

    High: 16 °F

    Areas Blowing
    Snow

  • Thursday Night

    Thursday Night: Areas of blowing snow. Mostly cloudy, with a low around -5. Northwest wind 35 to 40 mph, with gusts as high as 60 mph.

    Low: -5 °F

    Areas Blowing
    Snow

  • Friday

    Friday: Areas of blowing snow. Sunny, with a high near 0. Northwest wind 35 to 40 mph, with gusts as high as 55 mph.

    High: 0 °F

    Areas Blowing
    Snow

  • Friday Night

    Friday Night: Areas of blowing snow before 9pm. Mostly clear, with a low around -7.

    Low: -7 °F

    Areas Blowing
    Snow then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 9.

    High: 9 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around -1.

    Low: -1 °F

    Mostly Clear

Detailed Forecast

Overnight
A slight chance of snow after 3am. Mostly cloudy, with a low around 16. Northeast wind around 5 mph becoming east. Chance of precipitation is 20%.
Wednesday
Snow, mainly after 9am. High near 19. Southeast wind around 10 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Snow, mainly before 9pm. Low around 13. South wind 5 to 10 mph becoming northwest 10 to 15 mph after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Thursday
Areas of blowing snow. Mostly sunny, with a high near 16. Northwest wind 25 to 30 mph increasing to 35 to 40 mph in the afternoon. Winds could gust as high as 50 mph.
Thursday Night
Areas of blowing snow. Mostly cloudy, with a low around -5. Northwest wind 35 to 40 mph, with gusts as high as 60 mph.
Friday
Areas of blowing snow. Sunny, with a high near 0. Northwest wind 35 to 40 mph, with gusts as high as 55 mph.
Friday Night
Areas of blowing snow before 9pm. Mostly clear, with a low around -7.
Saturday
Sunny, with a high near 9.
Saturday Night
Mostly clear, with a low around -1.
Sunday
Mostly sunny, with a high near 19.
Sunday Night
Partly cloudy, with a low around 11.
Monday
Mostly sunny, with a high near 25.
Monday Night
A chance of snow. Partly cloudy, with a low around 14.
Tuesday
A chance of snow. Mostly cloudy, with a high near 24.
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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:
8:10 pm AKST Feb 17, 2026
Forecast Valid:
2am AKST Feb 18, 2026-6pm AKST Feb 24, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation