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 88%
Wind Speed N 0 MPH
Barometer 30.38 in (1028.79 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 27 Dec 09:53 PM PST
Extended Forecast for

10 Miles NNW Yreka CA

  • Tonight

    Tonight: Patchy fog between midnight and 2am. Widespread freezing fog after midnight.  Otherwise, partly cloudy, with a steady temperature around 29. Calm wind.

    Low: 29 °F

    Mostly Cloudy
    then Freezing
    Fog and
    Patchy Fog

  • Sunday

    Sunday: Widespread freezing fog before 11am. Sunny, with a high near 48. Calm wind becoming east northeast around 5 mph.

    High: 48 °F

    Freezing Fog
    then Sunny

  • Sunday Night

    Sunday Night: Widespread freezing fog after 10pm. Partly cloudy, with a low around 26. Calm wind.

    Low: 26 °F

    Freezing Fog

  • Monday

    Monday: Widespread freezing fog before 11am. Sunny, with a high near 51. Calm wind becoming east around 5 mph in the morning.

    High: 51 °F

    Freezing Fog
    then Sunny

  • Monday Night

    Monday Night: Widespread freezing fog after 10pm. Mostly clear, with a low around 28. Calm wind.

    Low: 28 °F

    Freezing Fog

  • Tuesday

    Tuesday: Widespread freezing fog before 11am. Sunny, with a high near 54.

    High: 54 °F

    Freezing Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain after 4am.  Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy
    then Slight
    Chance Rain

Detailed Forecast

Tonight
Patchy fog between midnight and 2am. Widespread freezing fog after midnight. Otherwise, partly cloudy, with a steady temperature around 29. Calm wind.
Sunday
Widespread freezing fog before 11am. Sunny, with a high near 48. Calm wind becoming east northeast around 5 mph.
Sunday Night
Widespread freezing fog after 10pm. Partly cloudy, with a low around 26. Calm wind.
Monday
Widespread freezing fog before 11am. Sunny, with a high near 51. Calm wind becoming east around 5 mph in the morning.
Monday Night
Widespread freezing fog after 10pm. Mostly clear, with a low around 28. Calm wind.
Tuesday
Widespread freezing fog before 11am. Sunny, with a high near 54.
Tuesday Night
Mostly clear, with a low around 30.
Wednesday
Mostly sunny, with a high near 55.
Wednesday Night
A slight chance of rain after 4am. Mostly cloudy, with a low around 33.
New Year's Day
A chance of rain, mainly after 10am. Mostly cloudy, with a high near 53.
Thursday Night
Rain likely. Mostly cloudy, with a low around 34.
Friday
A chance of rain. Snow level 4400 feet. Partly sunny, with a high near 51.
Friday Night
A chance of rain and snow. Snow level 3800 feet. Mostly cloudy, with a low around 32.
Saturday
A chance of rain and snow. Snow level 3200 feet rising to 3800 feet in the afternoon. Partly sunny, with a high near 50.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles NNW Yreka CA
 41.86°N 122.72°W (Elev. 1998 ft)
9:41 pm PST Dec 27, 2025
10pm PST Dec 27, 2025-6pm PST Jan 3, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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