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

Tracking Winter Weather and Frigid Temperatures Through This Weekend

A clipper storm will move across the Great Lakes through this weekend with periods of light snow, gusty winds, and lake effect snow bands which could make for hazardous travel at times. A frigid airmass will spread eastward behind this storm into the Midwest and Eastern U.S. through the weekend. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

21°F

-6°C

Humidity 92%
Wind Speed E 3 MPH
Barometer 30.35 in (1027.77 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 17 Jan 08:15 AM PST
Extended Forecast for

Montague CA

  • Today

    Today: Patchy freezing fog before 10am. Sunny, with a high near 51. Calm wind.

    High: 51 °F

    Patchy
    Freezing Fog
    then Sunny

  • Tonight

    Tonight: Patchy freezing fog between 1am and 4am. Partly cloudy, with a low around 27. Calm wind.

    Low: 27 °F

    Partly Cloudy
    then Patchy
    Freezing Fog

  • Sunday

    Sunday: Patchy dense freezing fog between 7am and 10am. Partly sunny, with a high near 50. Calm wind.

    High: 50 °F

    Patchy Dense
    Freezing Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Patchy freezing fog between 1am and 4am. Mostly clear, with a low around 25. Calm wind.

    Low: 25 °F

    Mostly Clear
    then Patchy
    Freezing Fog

  • M.L.King Day

    M.L.King Day: Patchy freezing fog between 7am and 10am. Sunny, with a high near 51. Calm wind.

    High: 51 °F

    Patchy
    Freezing Fog
    then Sunny

  • Monday Night

    Monday Night: Patchy freezing fog between 1am and 4am. Mostly clear, with a low around 23.

    Low: 23 °F

    Clear then
    Patchy
    Freezing Fog

  • Tuesday

    Tuesday: Patchy freezing fog between 7am and 10am. Sunny, with a high near 53.

    High: 53 °F

    Patchy
    Freezing Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 1am. Otherwise, mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 50.

    High: 50 °F

    Patchy Fog
    then Mostly
    Sunny

Detailed Forecast

Today
Patchy freezing fog before 10am. Sunny, with a high near 51. Calm wind.
Tonight
Patchy freezing fog between 1am and 4am. Partly cloudy, with a low around 27. Calm wind.
Sunday
Patchy dense freezing fog between 7am and 10am. Partly sunny, with a high near 50. Calm wind.
Sunday Night
Patchy freezing fog between 1am and 4am. Mostly clear, with a low around 25. Calm wind.
M.L.King Day
Patchy freezing fog between 7am and 10am. Sunny, with a high near 51. Calm wind.
Monday Night
Patchy freezing fog between 1am and 4am. Mostly clear, with a low around 23.
Tuesday
Patchy freezing fog between 7am and 10am. Sunny, with a high near 53.
Tuesday Night
Patchy fog after 1am. Otherwise, mostly clear, with a low around 26.
Wednesday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 50.
Wednesday Night
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 30.
Thursday
Patchy fog. Otherwise, mostly sunny, with a high near 54.
Thursday Night
Partly cloudy, with a low around 32.
Friday
Mostly sunny, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
Montague CA
 41.74°N 122.53°W (Elev. 2589 ft)
Last Update:
7:52 am PST Jan 17, 2026
Forecast Valid:
8am PST Jan 17, 2026-6pm PST Jan 23, 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