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

11°F

-12°C

Humidity 64%
Wind Speed Calm
Barometer 29.63 in (1003.8 mb)
Dewpoint 1°F (-17°C)
Visibility 10.00 mi
Last update 4 Mar 8:53 pm AKST
Extended Forecast for

4 Miles NW Alyeska AK

Winter Weather Advisory March 5, 11:00pm until March 6, 07:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: Partly cloudy, with a temperature rising to around 13 by 5am. East wind around 10 mph, with gusts as high as 20 mph.

    Low: 2 °F⇑

    Partly Cloudy

  • Thursday

    Thursday: Snow likely, mainly between 9am and 3pm. Mostly cloudy, with a high near 21. East wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 21 °F

    Snow Likely

  • Thursday Night

    Thursday Night: Snow, mainly after midnight. Areas of blowing snow after 3am. Temperature rising to around 27 by 5am. East wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 18 °F⇑

    Chance Snow
    then Snow and
    Areas Blowing
    Snow

  • Friday

    Friday: Snow. The snow could be heavy at times. Areas of blowing snow before noon. High near 29. East wind 30 to 40 mph decreasing to 5 to 15 mph in the afternoon. Winds could gust as high as 60 mph. Chance of precipitation is 100%.

    High: 29 °F

    Heavy Snow
    and Areas
    Blowing Snow
    then Snow
    Likely

  • Friday Night

    Friday Night: Snow likely, mainly before 9pm. Mostly cloudy, with a low around 13. South wind around 5 mph. Chance of precipitation is 60%.

    Low: 13 °F

    Snow Likely
    then Chance
    Snow

  • Saturday

    Saturday: A chance of snow. Mostly cloudy, with a high near 20. Calm wind becoming northwest around 5 mph. Chance of precipitation is 40%.

    High: 20 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Snow likely, mainly between 9pm and 3am. Mostly cloudy, with a low around 5. Chance of precipitation is 60%.

    Low: 5 °F

    Snow Likely

  • Sunday

    Sunday: A chance of snow. Mostly cloudy, with a high near 15.

    High: 15 °F

    Chance Snow

  • Sunday Night

    Sunday Night: A chance of snow before 3am. Mostly cloudy, with a low around -1.

    Low: -1 °F

    Chance Snow

Detailed Forecast

Tonight
Partly cloudy, with a temperature rising to around 13 by 5am. East wind around 10 mph, with gusts as high as 20 mph.
Thursday
Snow likely, mainly between 9am and 3pm. Mostly cloudy, with a high near 21. East wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday Night
Snow, mainly after midnight. Areas of blowing snow after 3am. Temperature rising to around 27 by 5am. East wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Friday
Snow. The snow could be heavy at times. Areas of blowing snow before noon. High near 29. East wind 30 to 40 mph decreasing to 5 to 15 mph in the afternoon. Winds could gust as high as 60 mph. Chance of precipitation is 100%.
Friday Night
Snow likely, mainly before 9pm. Mostly cloudy, with a low around 13. South wind around 5 mph. Chance of precipitation is 60%.
Saturday
A chance of snow. Mostly cloudy, with a high near 20. Calm wind becoming northwest around 5 mph. Chance of precipitation is 40%.
Saturday Night
Snow likely, mainly between 9pm and 3am. Mostly cloudy, with a low around 5. Chance of precipitation is 60%.
Sunday
A chance of snow. Mostly cloudy, with a high near 15.
Sunday Night
A chance of snow before 3am. Mostly cloudy, with a low around -1.
Monday
Mostly sunny, with a high near 11.
Monday Night
Partly cloudy, with a low around -5.
Tuesday
Partly sunny, with a high near 9.
Tuesday Night
Mostly cloudy, with a low around -6.
Wednesday
Mostly sunny, with a high near 10.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Alyeska AK
 61°N 149.22°W (Elev. 2651 ft)
Last Update:
4:11 pm AKST Mar 4, 2026
Forecast Valid:
9pm AKST Mar 4, 2026-6pm AKDT Mar 11, 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