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

Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Mostly Cloudy

21°F

-6°C

Humidity 95%
Wind Speed N 0 MPH
Barometer 30.35 in (1027.77 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 30 Dec 06:53 AM PST
Extended Forecast for

10 Miles NNE Montague CA

  • Today

    Today: Sunny, with a high near 45. South wind around 6 mph.

    High: 45 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 27. East wind around 5 mph becoming north northeast in the evening.

    Low: 27 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, with a high near 47. East wind around 5 mph becoming south in the afternoon.

    High: 47 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers before 4am, then a chance of rain after 4am. Mostly cloudy, with a low around 36. East southeast wind 3 to 5 mph. Chance of precipitation is 50%.

    Low: 36 °F

    Chance
    Showers

  • New Year's Day

    New Year's Day: Rain likely, mainly after 10am. Cloudy, with a high near 49. South southeast wind 3 to 6 mph. Chance of precipitation is 70%.

    High: 49 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 40. Chance of precipitation is 70%.

    Low: 40 °F

    Rain Likely
    then Chance
    Rain

  • Friday

    Friday: Rain, mainly after 10am. High near 52. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 52 °F

    Rain

  • Friday Night

    Friday Night: Rain. Snow level 5900 feet lowering to 5100 feet after midnight . Mostly cloudy, with a low around 33.

    Low: 33 °F

    Rain

  • Saturday

    Saturday: Rain likely. Snow level 4600 feet. Mostly cloudy, with a high near 45.

    High: 45 °F

    Rain Likely

Detailed Forecast

Today
Sunny, with a high near 45. South wind around 6 mph.
Tonight
Increasing clouds, with a low around 27. East wind around 5 mph becoming north northeast in the evening.
Wednesday
Partly sunny, with a high near 47. East wind around 5 mph becoming south in the afternoon.
Wednesday Night
A chance of showers before 4am, then a chance of rain after 4am. Mostly cloudy, with a low around 36. East southeast wind 3 to 5 mph. Chance of precipitation is 50%.
New Year's Day
Rain likely, mainly after 10am. Cloudy, with a high near 49. South southeast wind 3 to 6 mph. Chance of precipitation is 70%.
Thursday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 40. Chance of precipitation is 70%.
Friday
Rain, mainly after 10am. High near 52. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Rain. Snow level 5900 feet lowering to 5100 feet after midnight . Mostly cloudy, with a low around 33.
Saturday
Rain likely. Snow level 4600 feet. Mostly cloudy, with a high near 45.
Saturday Night
A chance of rain before 4am, then a chance of rain and snow. Snow level 4300 feet. Mostly cloudy, with a low around 29.
Sunday
A chance of rain and snow. Snow level 3900 feet rising to 4500 feet in the afternoon. Partly sunny, with a high near 44.
Sunday Night
A chance of rain and snow. Snow level 4400 feet. Mostly cloudy, with a low around 29.
Monday
A chance of rain and snow. Snow level 4200 feet rising to 4700 feet in the afternoon. Mostly cloudy, with a high near 46.
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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:
4:16 am PST Dec 30, 2025
Forecast Valid:
7am PST Dec 30, 2025-6pm PST Jan 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation