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

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Partly Cloudy

40°F

4°C

Humidity 79%
Wind Speed ESE 6 MPH
Barometer 29.64 in (1003.73 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 25 Dec 05:53 PM PST
Extended Forecast for

Yreka CA

  • Tonight

    Tonight: Showers. Snow level 3900 feet. Low around 32. South wind 5 to 7 mph becoming calm. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 32 °F

    Showers then
    Showers
    Likely

  • Friday

    Friday: Showers. Snow level 3900 feet. High near 44. South southeast wind 5 to 13 mph becoming north northeast in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 80%.

    High: 44 °F

    Showers

  • Friday Night

    Friday Night: A 40 percent chance of rain before 10pm. Snow level 3700 feet lowering to 3100 feet after midnight . Mostly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Chance Rain
    then Mostly
    Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 39. Light north northwest wind.

    High: 39 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 22. Calm wind.

    Low: 22 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 39.

    High: 39 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 42.

    High: 42 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

Detailed Forecast

Tonight
Showers. Snow level 3900 feet. Low around 32. South wind 5 to 7 mph becoming calm. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Showers. Snow level 3900 feet. High near 44. South southeast wind 5 to 13 mph becoming north northeast in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 80%.
Friday Night
A 40 percent chance of rain before 10pm. Snow level 3700 feet lowering to 3100 feet after midnight . Mostly cloudy, with a low around 28. Calm wind.
Saturday
Partly sunny, with a high near 39. Light north northwest wind.
Saturday Night
Partly cloudy, with a low around 22. Calm wind.
Sunday
Mostly sunny, with a high near 39.
Sunday Night
Partly cloudy, with a low around 22.
Monday
Sunny, with a high near 42.
Monday Night
Partly cloudy, with a low around 25.
Tuesday
Mostly sunny, with a high near 47.
Tuesday Night
Partly cloudy, with a low around 28.
Wednesday
Mostly sunny, with a high near 49.
Wednesday Night
Mostly cloudy, with a low around 29.
New Year's Day
A slight chance of rain. Snow level 5000 feet. Mostly cloudy, with a high near 48.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Yreka CA
 41.72°N 122.65°W (Elev. 2762 ft)
Last Update:
4:21 pm PST Dec 25, 2025
Forecast Valid:
6pm PST Dec 25, 2025-6pm PST Jan 1, 2026
 
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Additional Resources

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Chance of Precipitation