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

Heavy Rain and Mountain Snow Lingers in California; Winter Storm Impacting the Great Lakes and Northeast U.S.

An atmospheric river will wind down through today across California with lingering heavy rainfall, heavy mountain snow, and gusty winds. A wintry mix of freezing rain, sleet, and snow will cause hazardous travel conditions for the Great Lakes into the northern Mid-Atlantic and southern New England today through Saturday morning. Areas of tree damage and power outages are possible. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Mostly Cloudy

36°F

2°C

Humidity 86%
Wind Speed N 0 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 27 Dec 02:35 AM PST
Extended Forecast for

10 Miles NNE Montague CA

  • Overnight

    Overnight: Partly cloudy, with a low around 27. Light north northeast wind.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 38. Calm wind becoming north 5 to 8 mph in the afternoon.

    High: 38 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Widespread fog, mainly between 1am and 2am. Widespread freezing fog after 4am. Otherwise, partly cloudy, with a low around 21. Calm wind.

    Low: 21 °F

    Freezing Fog
    and Fog

  • Sunday

    Sunday: Widespread freezing fog before 9am. Mostly sunny, with a high near 41. Light and variable wind.

    High: 41 °F

    Freezing Fog
    then Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 21. East wind 3 to 5 mph.

    Low: 21 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 25 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 27. Light north northeast wind.
Saturday
Mostly sunny, with a high near 38. Calm wind becoming north 5 to 8 mph in the afternoon.
Saturday Night
Widespread fog, mainly between 1am and 2am. Widespread freezing fog after 4am. Otherwise, partly cloudy, with a low around 21. Calm wind.
Sunday
Widespread freezing fog before 9am. Mostly sunny, with a high near 41. Light and variable wind.
Sunday Night
Partly cloudy, with a low around 21. East wind 3 to 5 mph.
Monday
Sunny, with a high near 45.
Monday Night
Mostly clear, with a low around 24.
Tuesday
Mostly sunny, with a high near 48.
Tuesday Night
Mostly clear, with a low around 25.
Wednesday
Sunny, with a high near 49.
Wednesday Night
Partly cloudy, with a low around 28.
New Year's Day
A slight chance of rain. Snow level 5300 feet. Mostly sunny, with a high near 48.
Thursday Night
A chance of rain and snow. Snow level 5200 feet lowering to 4500 feet after midnight . Mostly cloudy, with a low around 30.
Friday
A chance of rain and snow. Snow level 4000 feet. Mostly cloudy, with a high near 45.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles NNE Montague CA
 41.86°N 122.45°W (Elev. 2598 ft)
Last Update:
2:11 am PST Dec 27, 2025
Forecast Valid:
2am PST Dec 27, 2025-6pm PST Jan 2, 2026
 
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