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

Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Hazardous Weather Conditions

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Overcast

45°F

7°C

Humidity 93%
Wind Speed N 4 MPH
Barometer 29.82 in (1009.82 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 01 Jan 12:00 PM PST
Extended Forecast for

Yreka CA

High Wind Watch January 3, 10:00am until January 4, 04:00am
Wind Advisory January 2, 04:00pm until January 3, 04:00am
Click here for hazard details and duration
High Wind Watch
Wind Advisory

  • New Year's Day

    New Year's Day: Rain likely. Mostly cloudy, with a high near 50. Calm wind becoming east around 5 mph. Chance of precipitation is 70%.

    High: 50 °F

    Rain Likely

  • Tonight

    Tonight: A 30 percent chance of rain, mainly before 2am. Mostly cloudy, with a low around 39. Light east northeast wind.

    Low: 39 °F

    Chance Rain

  • Friday

    Friday: A slight chance of rain before 3pm, then a chance of rain after 4pm. Mostly cloudy, with a high near 52. Breezy, with a light and variable wind becoming south southeast 17 to 22 mph in the morning. Winds could gust as high as 33 mph. Chance of precipitation is 30%.

    High: 52 °F

    Chance Rain
    and Breezy

  • Friday Night

    Friday Night: Rain, mainly after 10pm. Low around 40. Southeast wind 9 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 40 °F

    Rain

  • Saturday

    Saturday: Rain. Snow level 5700 feet. High near 53. Breezy, with a south southeast wind 9 to 14 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F

    Rain and
    Breezy

  • Saturday Night

    Saturday Night: Rain. Snow level 5400 feet. Low around 40. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 40 °F

    Rain

  • Sunday

    Sunday: Rain. Snow level 4900 feet. High near 47. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 47 °F

    Rain

  • Sunday Night

    Sunday Night: Rain likely. Snow level 4400 feet. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Rain Likely

  • Monday

    Monday: Rain likely, mainly before 10am. Snow level 4000 feet. Mostly cloudy, with a high near 44.

    High: 44 °F

    Rain Likely

Detailed Forecast

New Year's Day
Rain likely. Mostly cloudy, with a high near 50. Calm wind becoming east around 5 mph. Chance of precipitation is 70%.
Tonight
A 30 percent chance of rain, mainly before 2am. Mostly cloudy, with a low around 39. Light east northeast wind.
Friday
A slight chance of rain before 3pm, then a chance of rain after 4pm. Mostly cloudy, with a high near 52. Breezy, with a light and variable wind becoming south southeast 17 to 22 mph in the morning. Winds could gust as high as 33 mph. Chance of precipitation is 30%.
Friday Night
Rain, mainly after 10pm. Low around 40. Southeast wind 9 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Rain. Snow level 5700 feet. High near 53. Breezy, with a south southeast wind 9 to 14 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Rain. Snow level 5400 feet. Low around 40. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Rain. Snow level 4900 feet. High near 47. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain likely. Snow level 4400 feet. Mostly cloudy, with a low around 36.
Monday
Rain likely, mainly before 10am. Snow level 4000 feet. Mostly cloudy, with a high near 44.
Monday Night
A slight chance of rain before 10pm. Snow level 4000 feet. Mostly cloudy, with a low around 30.
Tuesday
A slight chance of rain. Snow level 3700 feet rising to 4500 feet in the afternoon. Mostly cloudy, with a high near 45.
Tuesday Night
A chance of rain and snow. Snow level 4400 feet. Mostly cloudy, with a low around 30.
Wednesday
A chance of rain and snow. Snow level 3700 feet. Mostly cloudy, with a high near 43.
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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:
11:46 am PST Jan 1, 2026
Forecast Valid:
12pm PST Jan 1, 2026-6pm PST Jan 7, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation