Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

St. Mary's, St. Mary's Airport (PASM)

Lat: 62.05°NLon: 163.3°WElev: 312ft.

Light Snow Fog/Mist

2°F

-17°C

Humidity 83%
Wind Speed NE 3 mph
Barometer 30.05 in (1019.1 mb)
Dewpoint -2°F (-19°C)
Visibility 0.75 mi
Last update 9 Dec 4:56 pm AKST
Extended Forecast for

Nililak AK

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 0. North wind 10 to 15 mph.

    Low: 0 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a temperature falling to around -3 by 5pm. North wind 5 to 10 mph becoming east in the afternoon.

    High: 5 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a temperature rising to around 3 by 5am. South wind 5 to 15 mph.

    Low: -4 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of snow before 3pm, then a chance of snow and freezing rain.  Areas of blowing snow between 9am and 3pm. Cloudy, with a high near 22. South wind around 20 mph.  Chance of precipitation is 50%.

    High: 22 °F

    Chance Wintry
    Mix and Areas
    Blowing Snow

  • Thursday Night

    Thursday Night: Snow and freezing rain likely before 3am, then a chance of snow.  Mostly cloudy, with a low around 22. Southwest wind 15 to 20 mph.  Chance of precipitation is 60%. Little or no ice accumulation expected.  New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Wintry Mix
    Likely

  • Friday

    Friday: A 20 percent chance of snow before 9am.  Mostly sunny, with a high near 30.

    High: 30 °F

    Slight Chance
    Snow then
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 19.

    High: 19 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 8.

    Low: 8 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming clear, with a low around 0. North wind 10 to 15 mph.
Wednesday
Sunny, with a temperature falling to around -3 by 5pm. North wind 5 to 10 mph becoming east in the afternoon.
Wednesday Night
Mostly cloudy, with a temperature rising to around 3 by 5am. South wind 5 to 15 mph.
Thursday
A chance of snow before 3pm, then a chance of snow and freezing rain. Areas of blowing snow between 9am and 3pm. Cloudy, with a high near 22. South wind around 20 mph. Chance of precipitation is 50%.
Thursday Night
Snow and freezing rain likely before 3am, then a chance of snow. Mostly cloudy, with a low around 22. Southwest wind 15 to 20 mph. Chance of precipitation is 60%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.
Friday
A 20 percent chance of snow before 9am. Mostly sunny, with a high near 30.
Friday Night
Partly cloudy, with a low around 12.
Saturday
Mostly sunny, with a high near 19.
Saturday Night
Partly cloudy, with a low around 8.
Sunday
Sunny, with a high near 15.
Sunday Night
Mostly clear, with a low around 4.
Monday
Sunny, with a high near 10.
Monday Night
Mostly clear, with a low around 3.
Tuesday
Mostly sunny, with a high near 11.
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ABOUT THIS FORECAST

 
Point Forecast:
Nililak AK
 62.58°N 164.81°W (Elev. 3 ft)
4:18 pm AKST Dec 9, 2025
5pm AKST Dec 9, 2025-6pm AKST Dec 16, 2025
 
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Additional Resources

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