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

Lake Effect Snow in the Lower Great Lakes; Rain and High Elevation Snow in the West

Lake-effect snow will continue downwind of Lakes Erie and Ontario through Friday. In the Western U.S., rain and higher elevation snow will continue over the Great Basin through Friday. A front will move over the Pacific Northwest Thursday afternoon and produce light rain and higher elevation snow over the Cascades through Saturday. 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 81%
Wind Speed E 3 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 11 Feb 06:35 PM PST
Extended Forecast for

Montague CA

  • Tonight

    Tonight: Patchy fog between 1am and 4am. Otherwise, partly cloudy, with a low around 30. Light and variable wind.

    Low: 30 °F

    Partly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog between 7am and 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 54. Calm wind.

    High: 54 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 55. Calm wind.

    High: 55 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of rain. Snow level 4800 feet rising to 5400 feet in the afternoon. Cloudy, with a high near 51.

    High: 51 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A 40 percent chance of rain. Snow level 4900 feet. Mostly cloudy, with a low around 31.

    Low: 31 °F

    Chance Rain

  • Sunday

    Sunday: A chance of rain. Snow level 4600 feet. Mostly cloudy, with a high near 49.

    High: 49 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A chance of rain. Snow level 4500 feet. Mostly cloudy, with a low around 30.

    Low: 30 °F

    Chance Rain

Detailed Forecast

Tonight
Patchy fog between 1am and 4am. Otherwise, partly cloudy, with a low around 30. Light and variable wind.
Thursday
Patchy fog between 7am and 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 54. Calm wind.
Thursday Night
Partly cloudy, with a low around 28. Calm wind.
Friday
Partly sunny, with a high near 55. Calm wind.
Friday Night
Mostly cloudy, with a low around 31. Calm wind.
Saturday
A 40 percent chance of rain. Snow level 4800 feet rising to 5400 feet in the afternoon. Cloudy, with a high near 51.
Saturday Night
A 40 percent chance of rain. Snow level 4900 feet. Mostly cloudy, with a low around 31.
Sunday
A chance of rain. Snow level 4600 feet. Mostly cloudy, with a high near 49.
Sunday Night
A chance of rain. Snow level 4500 feet. Mostly cloudy, with a low around 30.
Washington's Birthday
A chance of rain. Snow level 3900 feet. Mostly cloudy, with a high near 45.
Monday Night
Rain and snow likely. Snow level 3600 feet lowering to 2900 feet after midnight . Mostly cloudy, with a low around 24.
Tuesday
Rain and snow likely. Mostly cloudy, with a high near 43.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 23.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 45.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Montague CA
 41.72°N 122.53°W (Elev. 2598 ft)
Last Update:
4:22 pm PST Feb 11, 2026
Forecast Valid:
6pm PST Feb 11, 2026-6pm PST Feb 18, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation