Winter Returns Across the Northern Tier; Record Warmth for the Southwest

A large high pressure system will usher in cold air for this first day of March across the northern Plains, Great Lakes, Northeast and mid-Atlantic. Some wintry precipitation may evolve across the mid-Mississippi Valley, Ohio Valley and mid-Atlantic through Monday. Meanwhile, record warmth will spread across the Southwest, southern Plains through early this week. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Overcast

39°F

4°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 02 Mar 06:53 AM PST
Extended Forecast for

Yreka CA

  • Today

    Today: Patchy fog before 10am.  Otherwise, mostly sunny, with a high near 57. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 57 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Patchy fog after 10pm.  Otherwise, mostly clear, with a low around 36. Calm wind.

    Low: 36 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 10am.  Otherwise, mostly sunny, with a high near 60. Calm wind.

    High: 60 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Rain likely after 4am.  Mostly cloudy, with a low around 39. West southwest wind 3 to 5 mph.  Chance of precipitation is 60%.

    Low: 39 °F

    Mostly Cloudy
    then Rain
    Likely

  • Wednesday

    Wednesday: Rain likely, mainly before 10am.  Snow level 5100 feet lowering to 4600 feet in the afternoon . Partly sunny, with a high near 50. West wind 5 to 10 mph.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 50 °F

    Rain Likely
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

Detailed Forecast

Today
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 57. Calm wind becoming north northwest around 5 mph in the afternoon.
Tonight
Patchy fog after 10pm. Otherwise, mostly clear, with a low around 36. Calm wind.
Tuesday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 60. Calm wind.
Tuesday Night
Rain likely after 4am. Mostly cloudy, with a low around 39. West southwest wind 3 to 5 mph. Chance of precipitation is 60%.
Wednesday
Rain likely, mainly before 10am. Snow level 5100 feet lowering to 4600 feet in the afternoon . Partly sunny, with a high near 50. West wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Mostly cloudy, with a low around 33.
Thursday
Mostly sunny, with a high near 52.
Thursday Night
Partly cloudy, with a low around 33.
Friday
Mostly sunny, with a high near 57.
Friday Night
Partly cloudy, with a low around 37.
Saturday
Partly sunny, with a high near 63.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Mostly sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
Yreka CA
 41.75°N 122.62°W (Elev. 2726 ft)
3:41 am PST Mar 2, 2026
7am PST Mar 2, 2026-6pm PDT Mar 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