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

Above Average Temperatures for Most Today; Winter Weather Returns to the Upper Midwest and Great Lakes

Well above average temperatures are forecast today into Wednesday over most of the lower 48 states away from the Gulf Coast. A storm system passing across southern Canada will bring a wintry mix to the upper Great Lakes today. A trailing cold front will then bring the wintry mix from the central Appalachians through the Northeast U.S. Wednesday and Thursday. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

46°F

8°C

Humidity 61%
Wind Speed S 3 MPH
Barometer 30.46 in (1031.49 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 13 Jan 05:00 PM PST
Extended Forecast for

15 Miles NNE Montague CA

  • Tonight

    Tonight: Mostly clear, with a low around 25. Light northeast wind.

    Low: 25 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 55. Light and variable wind.

    High: 55 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 27. East northeast wind 3 to 5 mph.

    Low: 27 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 57. East northeast wind around 6 mph.

    High: 57 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 28. East northeast wind around 6 mph.

    Low: 28 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 28.

    Low: 28 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 25. Light northeast wind.
Wednesday
Sunny, with a high near 55. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 27. East northeast wind 3 to 5 mph.
Thursday
Sunny, with a high near 57. East northeast wind around 6 mph.
Thursday Night
Clear, with a low around 28. East northeast wind around 6 mph.
Friday
Sunny, with a high near 57.
Friday Night
Clear, with a low around 28.
Saturday
Sunny, with a high near 56.
Saturday Night
Mostly clear, with a low around 29.
Sunday
Sunny, with a high near 57.
Sunday Night
Mostly clear, with a low around 30.
M.L.King Day
Sunny, with a high near 57.
Monday Night
Partly cloudy, with a low around 31.
Tuesday
Mostly sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
15 Miles NNE Montague CA
 41.93°N 122.44°W (Elev. 2198 ft)
Last Update:
3:36 pm PST Jan 13, 2026
Forecast Valid:
5pm PST Jan 13, 2026-6pm PST Jan 20, 2026
 
Forecast Discussion
 
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Additional Resources

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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