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

Critical Fire Weather in the Southern High Plains; Heavy Snow in the Great Lakes and Northeast U.S.

Gusty winds and low relative humidity will bring elevated to critical fire weather conditions to the southern High Plains through the weekend. A winter storm will track across the Great Lakes and Northeast U.S. into Saturday with areas of wintry mix and heavy snow from northern New York through southern Maine. Read More >

Hazardous Weather Conditions

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

39°F

4°C

Humidity 48%
Wind Speed SSW 4 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 20 Feb 12:35 PM PST
Extended Forecast for

Montague CA

Wind Advisory February 21, 01:00am until February 22, 07:00pm
Click here for hazard details and duration
Wind Advisory

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 39. Light south wind increasing to 12 to 17 mph. Winds could gust as high as 25 mph.

    High: 39 °F

    Partly Sunny

  • Tonight

    Tonight: A slight chance of snow between 9pm and 2am. Mostly cloudy, with a low around 24. Breezy, with a south wind 17 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.

    Low: 24 °F

    Slight Chance
    Snow and
    Breezy

  • Saturday

    Saturday: Mostly cloudy, with a high near 43. Windy, with a south wind 22 to 27 mph increasing to 29 to 34 mph in the afternoon. Winds could gust as high as 50 mph.

    High: 43 °F

    Mostly Cloudy
    and Windy

  • Saturday Night

    Saturday Night: A 40 percent chance of rain after 10pm. Snow level 3500 feet rising to 4100 feet after midnight. Mostly cloudy, with a low around 32. Windy, with a south southeast wind 25 to 30 mph, with gusts as high as 45 mph.

    Low: 32 °F

    Chance Rain
    and Windy

  • Sunday

    Sunday: Rain likely. Snow level 4300 feet rising to 5200 feet in the afternoon. Mostly cloudy, with a high near 48. Windy, with a south wind 22 to 31 mph, with gusts as high as 47 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 48 °F

    Rain Likely
    and Windy

  • Sunday Night

    Sunday Night: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 37. Chance of precipitation is 60%.

    Low: 37 °F

    Rain Likely

  • Monday

    Monday: A 50 percent chance of rain. Cloudy, with a high near 52.

    High: 52 °F

    Chance Rain

  • Monday Night

    Monday Night: Rain. Cloudy, with a low around 36.

    Low: 36 °F

    Rain

  • Tuesday

    Tuesday: Rain, mainly before 10am. Snow level 5500 feet. Cloudy, with a high near 49.

    High: 49 °F

    Rain

Detailed Forecast

This Afternoon
Partly sunny, with a high near 39. Light south wind increasing to 12 to 17 mph. Winds could gust as high as 25 mph.
Tonight
A slight chance of snow between 9pm and 2am. Mostly cloudy, with a low around 24. Breezy, with a south wind 17 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.
Saturday
Mostly cloudy, with a high near 43. Windy, with a south wind 22 to 27 mph increasing to 29 to 34 mph in the afternoon. Winds could gust as high as 50 mph.
Saturday Night
A 40 percent chance of rain after 10pm. Snow level 3500 feet rising to 4100 feet after midnight. Mostly cloudy, with a low around 32. Windy, with a south southeast wind 25 to 30 mph, with gusts as high as 45 mph.
Sunday
Rain likely. Snow level 4300 feet rising to 5200 feet in the afternoon. Mostly cloudy, with a high near 48. Windy, with a south wind 22 to 31 mph, with gusts as high as 47 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 37. Chance of precipitation is 60%.
Monday
A 50 percent chance of rain. Cloudy, with a high near 52.
Monday Night
Rain. Cloudy, with a low around 36.
Tuesday
Rain, mainly before 10am. Snow level 5500 feet. Cloudy, with a high near 49.
Tuesday Night
A chance of rain. Snow level 5100 feet lowering to 4300 feet after midnight . Mostly cloudy, with a low around 31.
Wednesday
A slight chance of rain. Snow level 3700 feet rising to 4400 feet in the afternoon. Mostly cloudy, with a high near 53.
Wednesday Night
A chance of rain. Snow level 4300 feet. Mostly cloudy, with a low around 34.
Thursday
A chance of rain. Snow level 3900 feet rising to 4800 feet in the afternoon. Partly sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Montague CA
 41.72°N 122.53°W (Elev. 2598 ft)
Last Update:
12:42 pm PST Feb 20, 2026
Forecast Valid:
12pm PST Feb 20, 2026-6pm PST Feb 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