Heavy Precipitation in the West; Wintry Mix in the North; Fire Weather in the High Plains

Pacific moisture will continue to bring locally heavy coastal/lower elevation rain and heavy mountain snow to the West Coast and portions of the Intermountain West through Monday. A wintry mix will create hazardous travel across the northern Plains and Upper Midwest into early Monday. Dry, gusty winds are resulting in elevated to critical fire weather in the south/central High Plains. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Partly Cloudy

43°F

6°C

Humidity 70%
Wind Speed S 9 MPH
Barometer 29.69 in (1005.42 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 04 Jan 06:15 PM PST
Extended Forecast for

15 Miles NE Weed CA

Winter Storm Warning January 4, 06:40pm until January 5, 04:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning January 4, 06:40pm until January 5, 04:00pm

    NOW until 4:00pm Mon

    Winter Storm Warning

  • Tonight

    Low: 29 °F

    Snow

  • Monday

    Monday: Snow, mainly before 4pm.  High near 38. West wind 5 to 8 mph.  Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    High: 38 °F

    Snow

  • Monday Night

    Monday Night: A 40 percent chance of snow before 10pm.  Mostly cloudy, with a low around 27. West wind around 6 mph.  Little or no snow accumulation expected.

    Low: 27 °F

    Chance Snow
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: A chance of rain and snow, mainly after 4pm.  Snow level 5000 feet. Mostly cloudy, with a high near 40. Southwest wind 5 to 13 mph, with gusts as high as 20 mph.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 40 °F

    Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: A chance of rain and snow before 10pm, then snow likely.  Snow level 4800 feet. Mostly cloudy, with a low around 28. Southwest wind around 10 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Rain/Snow
    Likely then
    Snow Likely

  • Wednesday

    Wednesday: Snow likely, mainly after 4pm.  Mostly cloudy, with a high near 39. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Snow Likely

  • Wednesday Night

    Wednesday Night: Snow likely, mainly before 10pm.  Mostly cloudy, with a low around 22. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Snow Likely

  • Thursday

    Thursday: A chance of snow, mainly before 10am.  Partly sunny, with a high near 37.

    High: 37 °F

    Chance Snow

Detailed Forecast

Tonight
Snow, mainly after 11pm. Low around 29. West southwest wind 6 to 9 mph becoming northwest after midnight. Chance of precipitation is 90%. Total nighttime snow accumulation of around an inch possible.
Monday
Snow, mainly before 4pm. High near 38. West wind 5 to 8 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Monday Night
A 40 percent chance of snow before 10pm. Mostly cloudy, with a low around 27. West wind around 6 mph. Little or no snow accumulation expected.
Tuesday
A chance of rain and snow, mainly after 4pm. Snow level 5000 feet. Mostly cloudy, with a high near 40. Southwest wind 5 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Tuesday Night
A chance of rain and snow before 10pm, then snow likely. Snow level 4800 feet. Mostly cloudy, with a low around 28. Southwest wind around 10 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday
Snow likely, mainly after 4pm. Mostly cloudy, with a high near 39. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday Night
Snow likely, mainly before 10pm. Mostly cloudy, with a low around 22. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday
A chance of snow, mainly before 10am. Partly sunny, with a high near 37.
Thursday Night
Partly cloudy, with a low around 22.
Friday
Mostly sunny, with a high near 42.
Friday Night
Mostly clear, with a low around 24.
Saturday
Sunny, with a high near 45.
Saturday Night
Partly cloudy, with a low around 27.
Sunday
Sunny, with a high near 47.
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles NE Weed CA
 41.59°N 122.19°W (Elev. 4806 ft)
3:41 pm PST Jan 4, 2026
6pm PST Jan 4, 2026-6pm PST Jan 11, 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