Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

freezing fog

28°F

-2°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.31 in (1026.41 mb)
Dewpoint 28°F (-2°C)
Visibility 0.24 mi
Last update 10 Dec 11:20 PM PST
Extended Forecast for

5 Miles NE Montague CA

  • Tonight

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

    Low: 28 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy dense fog before 10am.  Otherwise, sunny, with a high near 55. Calm wind.

    High: 55 °F

    Patchy Dense
    Fog then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 25. Light east wind.

    Low: 25 °F

    Mostly Clear

  • Friday

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

    High: 55 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 25. Calm wind becoming east around 5 mph in the evening.

    Low: 25 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of rain after 4am.  Mostly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy
    then Slight
    Chance Rain

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, mostly clear, with a low around 28. Calm wind.
Thursday
Patchy dense fog before 10am. Otherwise, sunny, with a high near 55. Calm wind.
Thursday Night
Mostly clear, with a low around 25. Light east wind.
Friday
Mostly sunny, with a high near 55. Calm wind.
Friday Night
Mostly clear, with a low around 25. Calm wind becoming east around 5 mph in the evening.
Saturday
Sunny, with a high near 57.
Saturday Night
Mostly clear, with a low around 28.
Sunday
Mostly sunny, with a high near 55.
Sunday Night
A slight chance of rain after 4am. Mostly cloudy, with a low around 33.
Monday
Rain likely, mainly after 4pm. Mostly cloudy, with a high near 54.
Monday Night
Rain likely. Mostly cloudy, with a low around 36.
Tuesday
A chance of rain. Partly sunny, with a high near 55.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 35.
Wednesday
A chance of rain. Mostly cloudy, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NE Montague CA
 41.77°N 122.48°W (Elev. 2612 ft)
9:41 pm PST Dec 10, 2025
11pm PST Dec 10, 2025-6pm PST Dec 17, 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