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

Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

Hazardous Weather Conditions

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Rain

52°F

11°C

Humidity 76%
Wind Speed SSE 14 MPH
Barometer 29.34 in (993.57 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 24 Dec 02:20 AM PST
Extended Forecast for

5 Miles NE Montague CA

High Wind Watch December 24, 10:00pm until December 25, 10:00am
High Wind Warning until December 24, 01:00pm
Click here for hazard details and duration
High Wind Watch
High Wind Warning
  •  
    High Wind Warning until December 24, 01:00pm

    NOW until 1:00pm Wed

    High Wind Warning

  • Overnight

    Low: 47 °F

    Rain and
    Breezy

  • Wednesday

    Wednesday: Rain, mainly before 8am. Snow level 6100 feet lowering to 4900 feet. High near 51. Windy, with a south wind 33 to 43 mph decreasing to 17 to 27 mph in the morning. Winds could gust as high as 70 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 51 °F

    Rain and
    Windy then
    Slight Chance
    Rain

  • Wednesday Night

    Wednesday Night: Rain, mainly after 11pm. Snow level 4800 feet rising to 5400 feet after midnight. Low around 32. Southeast wind 11 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 32 °F

    Rain

  • Christmas Day

    Christmas Day: Rain. Snow level 4900 feet lowering to 4300 feet. High near 46. Windy, with a south wind 28 to 30 mph, with gusts as high as 48 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 46 °F

    Rain and
    Windy

  • Thursday Night

    Thursday Night: Rain. Snow level 4000 feet. Low around 29. South southeast wind around 11 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 29 °F

    Rain

  • Friday

    Friday: Rain likely, mainly before 4pm. Snow level 3900 feet. Cloudy, with a high near 43. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 43 °F

    Rain Likely

  • Friday Night

    Friday Night: A 30 percent chance of rain before 10pm. Snow level 3500 feet. Mostly cloudy, with a low around 24.

    Low: 24 °F

    Chance Rain
    then Mostly
    Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

Detailed Forecast

Overnight
Rain. Steady temperature around 47. Breezy, with a south southeast wind around 22 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain, mainly before 8am. Snow level 6100 feet lowering to 4900 feet. High near 51. Windy, with a south wind 33 to 43 mph decreasing to 17 to 27 mph in the morning. Winds could gust as high as 70 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain, mainly after 11pm. Snow level 4800 feet rising to 5400 feet after midnight. Low around 32. Southeast wind 11 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Christmas Day
Rain. Snow level 4900 feet lowering to 4300 feet. High near 46. Windy, with a south wind 28 to 30 mph, with gusts as high as 48 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain. Snow level 4000 feet. Low around 29. South southeast wind around 11 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain likely, mainly before 4pm. Snow level 3900 feet. Cloudy, with a high near 43. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A 30 percent chance of rain before 10pm. Snow level 3500 feet. Mostly cloudy, with a low around 24.
Saturday
Partly sunny, with a high near 41.
Saturday Night
Partly cloudy, with a low around 18.
Sunday
Partly sunny, with a high near 40.
Sunday Night
Mostly clear, with a low around 19.
Monday
Sunny, with a high near 46.
Monday Night
Mostly clear, with a low around 21.
Tuesday
Sunny, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NE Montague CA
 41.77°N 122.48°W (Elev. 2612 ft)
Last Update:
2:12 am PST Dec 24, 2025
Forecast Valid:
2am PST Dec 24, 2025-6pm PST Dec 30, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation