Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

28°F

-2°C

Humidity 92%
Wind Speed N 0 MPH
Barometer 30.21 in (1023.03 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 20 Jan 09:20 PM PST
Extended Forecast for

13 Miles N Montague CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 27. North northeast wind 5 to 7 mph becoming calm  in the evening.

    Low: 27 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Patchy fog before 10am.  Otherwise, mostly cloudy, with a high near 53. Calm wind.

    High: 53 °F

    Patchy Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 1am.  Otherwise, mostly cloudy, with a low around 28. Light northeast wind.

    Low: 28 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Areas of fog before 10am.  Otherwise, sunny, with a high near 54. Calm wind.

    High: 54 °F

    Areas Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 27. Light north wind.

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 33.

    Low: 33 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 27. North northeast wind 5 to 7 mph becoming calm in the evening.
Wednesday
Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 53. Calm wind.
Wednesday Night
Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 28. Light northeast wind.
Thursday
Areas of fog before 10am. Otherwise, sunny, with a high near 54. Calm wind.
Thursday Night
Mostly clear, with a low around 27. Light north wind.
Friday
Sunny, with a high near 51.
Friday Night
Clear, with a low around 33.
Saturday
Sunny, with a high near 50.
Saturday Night
Mostly clear, with a low around 25.
Sunday
Partly sunny, with a high near 49.
Sunday Night
Mostly cloudy, with a low around 28.
Monday
Partly sunny, with a high near 51.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Partly sunny, with a high near 53.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
13 Miles N Montague CA
 41.91°N 122.55°W (Elev. 2198 ft)
9:41 pm PST Jan 20, 2026
9pm PST Jan 20, 2026-6pm PST Jan 27, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database