Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

30°F

-1°C

Humidity 86%
Wind Speed N 4 MPH
Barometer 30.2 in (1022.69 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 20 Jan 08:00 PM PST
Extended Forecast for

4 Miles N Yreka CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 28. Light east wind.

    Low: 28 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 52. Light east wind.

    High: 52 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 29. Light east southeast wind.

    Low: 29 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 51. Light north wind.

    High: 51 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 26. Light north wind.

    Low: 26 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 32.

    Low: 32 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 28. Light east wind.
Wednesday
Partly sunny, with a high near 52. Light east wind.
Wednesday Night
Mostly cloudy, with a low around 29. Light east southeast wind.
Thursday
Sunny, with a high near 51. Light north wind.
Thursday Night
Mostly clear, with a low around 26. Light north wind.
Friday
Sunny, with a high near 49.
Friday Night
Clear, with a low around 32.
Saturday
Sunny, with a high near 47.
Saturday Night
Mostly clear, with a low around 25.
Sunday
Partly sunny, with a high near 46.
Sunday Night
Mostly cloudy, with a low around 28.
Monday
Mostly sunny, with a high near 49.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Partly sunny, with a high near 50.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Yreka CA
 41.81°N 122.64°W (Elev. 3379 ft)
8:01 pm PST Jan 20, 2026
8pm PST Jan 20, 2026-6pm PST Jan 27, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database