Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

Lat: 41.77375°NLon: 122.46817°WElev: 2644.0ft.

Clear

28°F

-2°C

Humidity 86%
Wind Speed N 0 MPH
Barometer 30.39 in (1029.12 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 27 Dec 11:35 PM PST
Extended Forecast for

17 Miles NNE Weed CA

  • Tonight

    Tonight: Mostly cloudy early, then becoming mostly clear, with a steady temperature around 22. Northeast wind around 7 mph.

    Low: 22 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 39. Northeast wind around 7 mph.

    High: 39 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 22. East wind around 9 mph.

    Low: 22 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 46. East northeast wind 6 to 9 mph.

    High: 46 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 27. East wind around 8 mph.

    Low: 27 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of snow after 4am.  Snow level 6900 feet lowering to 6200 feet after midnight . Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Tonight
Mostly cloudy early, then becoming mostly clear, with a steady temperature around 22. Northeast wind around 7 mph.
Sunday
Sunny, with a high near 39. Northeast wind around 7 mph.
Sunday Night
Mostly clear, with a low around 22. East wind around 9 mph.
Monday
Sunny, with a high near 46. East northeast wind 6 to 9 mph.
Monday Night
Mostly clear, with a low around 27. East wind around 8 mph.
Tuesday
Sunny, with a high near 49.
Tuesday Night
Mostly clear, with a low around 28.
Wednesday
Mostly sunny, with a high near 51.
Wednesday Night
A chance of snow after 4am. Snow level 6900 feet lowering to 6200 feet after midnight . Mostly cloudy, with a low around 30.
New Year's Day
A chance of rain and snow before 1pm, then a chance of rain. Snow level 5800 feet rising to 6400 feet in the afternoon. Mostly cloudy, with a high near 46.
Thursday Night
Rain and snow likely. Snow level 5900 feet lowering to 5200 feet after midnight . Mostly cloudy, with a low around 29.
Friday
A chance of snow. Mostly cloudy, with a high near 43.
Friday Night
A chance of snow. Mostly cloudy, with a low around 27.
Saturday
A chance of snow. Partly sunny, with a high near 42.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles NNE Weed CA
 41.61°N 122.2°W (Elev. 4941 ft)
9:41 pm PST Dec 27, 2025
11pm PST Dec 27, 2025-6pm PST Jan 3, 2026
 
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Additional Resources

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