Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

36°F

2°C

Humidity 93%
Wind Speed E 4 MPH
Barometer 30.3 in (1026.08 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 08 Dec 10:00 PM PST
Extended Forecast for

4 Miles NE Montague CA

  • Tonight

    Tonight: Partly cloudy, with a low around 30. West wind around 7 mph.

    Low: 30 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 55. South southwest wind 3 to 5 mph.

    High: 55 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 1am.  Otherwise, partly cloudy, with a low around 31. South southwest wind around 6 mph becoming calm  in the evening.

    Low: 31 °F

    Partly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 11am.  Otherwise, mostly sunny, with a high near 58. Calm wind.

    High: 58 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 3am.  Otherwise, mostly clear, with a low around 28. Calm wind.

    Low: 28 °F

    Mostly Clear
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 10am.  Otherwise, sunny, with a high near 56.

    High: 56 °F

    Patchy Fog
    then Sunny

  • Thursday Night

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

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Friday Night

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

    Low: 25 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 30. West wind around 7 mph.
Tuesday
Mostly sunny, with a high near 55. South southwest wind 3 to 5 mph.
Tuesday Night
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 31. South southwest wind around 6 mph becoming calm in the evening.
Wednesday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 58. Calm wind.
Wednesday Night
Patchy fog after 3am. Otherwise, mostly clear, with a low around 28. Calm wind.
Thursday
Patchy fog before 10am. Otherwise, sunny, with a high near 56.
Thursday Night
Mostly clear, with a low around 27.
Friday
Sunny, with a high near 55.
Friday Night
Mostly clear, with a low around 25.
Saturday
Mostly sunny, with a high near 56.
Saturday Night
Partly cloudy, with a low around 30.
Sunday
Partly sunny, with a high near 54.
Sunday Night
Mostly cloudy, with a low around 32.
Monday
A chance of rain. Partly sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Montague CA
 41.77°N 122.48°W (Elev. 2612 ft)
9:41 pm PST Dec 8, 2025
10pm PST Dec 8, 2025-6pm PST Dec 15, 2025
 
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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