National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Above Average Temperatures for Most Today; Winter Weather Returns to the Upper Midwest and Great Lakes

Well above average temperatures are forecast today into Wednesday over most of the lower 48 states away from the Gulf Coast. A storm system passing across southern Canada will bring a wintry mix to the upper Great Lakes today. A trailing cold front will then bring the wintry mix from the central Appalachians through the Northeast U.S. Wednesday and Thursday. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

freezing fog

19°F

-7°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.49 in (1032.51 mb)
Dewpoint 19°F (-7°C)
Visibility 0.25 mi
Last update 13 Jan 07:00 AM PST
Extended Forecast for

Yreka CA

  • Today

    Today: Patchy fog before 9am. Otherwise, sunny, with a high near 48. Calm wind.

    High: 48 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, mostly clear, with a low around 26. Calm wind.

    Low: 26 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 9am. Otherwise, sunny, with a high near 49. Light northeast wind.

    High: 49 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog between 1am and 4am. Otherwise, mostly clear, with a low around 29. Light east northeast wind.

    Low: 29 °F

    Clear then
    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 9am. Otherwise, sunny, with a high near 55. East northeast wind 3 to 5 mph.

    High: 55 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 29.

    Low: 29 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 29.

    Low: 29 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, sunny, with a high near 48. Calm wind.
Tonight
Patchy fog after 3am. Otherwise, mostly clear, with a low around 26. Calm wind.
Wednesday
Patchy fog before 9am. Otherwise, sunny, with a high near 49. Light northeast wind.
Wednesday Night
Patchy fog between 1am and 4am. Otherwise, mostly clear, with a low around 29. Light east northeast wind.
Thursday
Patchy fog before 9am. Otherwise, sunny, with a high near 55. East northeast wind 3 to 5 mph.
Thursday Night
Clear, with a low around 29.
Friday
Sunny, with a high near 55.
Friday Night
Clear, with a low around 29.
Saturday
Sunny, with a high near 55.
Saturday Night
Mostly clear, with a low around 31.
Sunday
Sunny, with a high near 56.
Sunday Night
Mostly clear, with a low around 32.
M.L.King Day
Mostly sunny, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Yreka CA
 41.75°N 122.62°W (Elev. 2726 ft)
Last Update:
3:41 am PST Jan 13, 2026
Forecast Valid:
7am PST Jan 13, 2026-6pm PST Jan 19, 2026
 
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Additional Resources

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Chance of Precipitation