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

Fire Weather Issues; Pacific System Moving Inland

Dry fuels, strong winds and dry weather will continue to bring elevated to critical fire weather conditions to the areas of the Plains, Midwest and Southeast today. A Pacific storm system will bring low elevation rain and heavy high elevation mountain snow to California through early week, expanding into the Pacific Northwest, Great Basin, and southern California on Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

57°F

14°C

Humidity 32%
Wind Speed S 16 MPH
Barometer 29.83 in (1010.16 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 20 Apr 03:53 AM PDT
Extended Forecast for

10 Miles NNE Montague CA

Winter Weather Advisory April 20, 11:00am until April 21, 11:00am
Wind Advisory April 20, 08:00am until April 20, 06:00pm
Click here for hazard details and duration
Winter Weather Advisory
Wind Advisory

  • Today

    Today: Rain likely, mainly after 5pm. Snow level 5100 feet rising to 6400 feet in the afternoon. Partly sunny, with a high near 61. Breezy, with a south wind 7 to 12 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 60%.

    High: 61 °F

    Breezy.
    Partly Sunny
    then Rain
    Likely

  • Tonight

    Tonight: Rain. Low around 42. South wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 42 °F

    Rain

  • Tuesday

    Tuesday: Rain, mainly between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. Snow level 5200 feet rising to 6000 feet in the afternoon. High near 54. South wind 5 to 9 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 54 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 8pm, then rain, mainly between 8pm and 11pm. Snow level 6100 feet lowering to 4800 feet after midnight . Low around 38. Northwest wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 38 °F

    Showers then
    Chance Rain

  • Wednesday

    Wednesday: A 30 percent chance of rain, mainly after 11am. Snow level 4600 feet rising to 5400 feet in the afternoon. Partly sunny, with a high near 56. Light southwest wind becoming west 6 to 11 mph in the afternoon.

    High: 56 °F

    Chance Rain

  • Wednesday Night

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

    Low: 33 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 34.

    Low: 34 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

Detailed Forecast

Today
Rain likely, mainly after 5pm. Snow level 5100 feet rising to 6400 feet in the afternoon. Partly sunny, with a high near 61. Breezy, with a south wind 7 to 12 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 60%.
Tonight
Rain. Low around 42. South wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Rain, mainly between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. Snow level 5200 feet rising to 6000 feet in the afternoon. High near 54. South wind 5 to 9 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and possibly a thunderstorm before 8pm, then rain, mainly between 8pm and 11pm. Snow level 6100 feet lowering to 4800 feet after midnight . Low around 38. Northwest wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 30 percent chance of rain, mainly after 11am. Snow level 4600 feet rising to 5400 feet in the afternoon. Partly sunny, with a high near 56. Light southwest wind becoming west 6 to 11 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 33.
Thursday
Sunny, with a high near 64.
Thursday Night
Clear, with a low around 34.
Friday
Sunny, with a high near 70.
Friday Night
Mostly clear, with a low around 37.
Saturday
Sunny, with a high near 71.
Saturday Night
Mostly clear, with a low around 38.
Sunday
Sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles NNE Montague CA
 41.86°N 122.45°W (Elev. 2598 ft)
Last Update:
2:47 am PDT Apr 20, 2026
Forecast Valid:
4am PDT Apr 20, 2026-6pm PDT Apr 26, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation