Dangerous Cold Persists through Monday; Wintry Weather from the Northern Plains to the Great Lakes

Bitter cold temperatures and dangerous wind chills will persist from Florida to the Northeast through Monday. Daily record low temperatures are forecast across the Southeast and Florida, with some all-time February low temperature records possible across Florida. An Alberta clipper will spread wintry precipitation across the Northern Plains today and into the upper Great Lakes into tonight. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

29°F

-2°C

Humidity 84%
Wind Speed N 0 MPH
Barometer 30.27 in (1025.06 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 01 Feb 09:53 PM PST
Extended Forecast for

Yreka CA

  • Tonight

    Tonight: Patchy fog before 3am, then patchy fog after 4am.  Otherwise, mostly clear, with a low around 30. Calm wind.

    Low: 30 °F

    Clear then
    Patchy Fog

  • Monday

    Monday: Patchy fog before 10am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 54. Calm wind.

    High: 54 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 27. Calm wind.

    Low: 27 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 57. Calm wind.

    High: 57 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 27. Light east wind.

    Low: 27 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 28.

    Low: 28 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog before 3am, then patchy fog after 4am. Otherwise, mostly clear, with a low around 30. Calm wind.
Monday
Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 54. Calm wind.
Monday Night
Mostly clear, with a low around 27. Calm wind.
Tuesday
Sunny, with a high near 57. Calm wind.
Tuesday Night
Mostly clear, with a low around 27. Light east wind.
Wednesday
Sunny, with a high near 58.
Wednesday Night
Clear, with a low around 28.
Thursday
Sunny, with a high near 61.
Thursday Night
Mostly clear, with a low around 31.
Friday
Mostly sunny, with a high near 58.
Friday Night
Mostly clear, with a low around 32.
Saturday
Mostly sunny, with a high near 57.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 32.
Sunday
A chance of rain. Partly sunny, with a high near 52.
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ABOUT THIS FORECAST

 
Point Forecast:
Yreka CA
 41.75°N 122.62°W (Elev. 2726 ft)
9:41 pm PST Feb 1, 2026
10pm PST Feb 1, 2026-6pm PST Feb 8, 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