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.

Mist

21°F

-6°C

Humidity 95%
Wind Speed NNW 3 MPH
Barometer 30.35 in (1027.77 mb)
Dewpoint 20°F (-7°C)
Visibility 1.75 mi
Last update 30 Dec 08:07 AM PST
Extended Forecast for

6 Miles WSW Fort Jones CA

  • Today

    Today: Sunny, with a high near 41. Light east northeast wind.

    High: 41 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 31. East southeast wind around 5 mph becoming light and variable after midnight.

    Low: 31 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers after 4pm. Mostly cloudy, with a high near 44. Light east southeast wind.

    High: 44 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly between 10pm and 4am, then rain likely after 4am. Mostly cloudy, with a low around 36. Light south southeast wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Showers
    Likely

  • New Year's Day

    New Year's Day: Rain. High near 49. Light southeast wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 49 °F

    Rain

  • Thursday Night

    Thursday Night: Rain, mainly before 10pm. Low around 39. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 39 °F

    Rain

  • Friday

    Friday: Rain. High near 50. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 50 °F

    Rain

  • Friday Night

    Friday Night: Rain. Snow level 5700 feet lowering to 5000 feet after midnight . Mostly cloudy, with a low around 32.

    Low: 32 °F

    Rain

  • Saturday

    Saturday: Rain likely, possibly mixed with snow, becoming all rain after 10am. Snow level 4500 feet. Mostly cloudy, with a high near 44.

    High: 44 °F

    Rain/Snow
    Likely then
    Rain Likely

Detailed Forecast

Today
Sunny, with a high near 41. Light east northeast wind.
Tonight
Partly cloudy, with a low around 31. East southeast wind around 5 mph becoming light and variable after midnight.
Wednesday
A 30 percent chance of showers after 4pm. Mostly cloudy, with a high near 44. Light east southeast wind.
Wednesday Night
Showers likely, mainly between 10pm and 4am, then rain likely after 4am. Mostly cloudy, with a low around 36. Light south southeast wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
New Year's Day
Rain. High near 49. Light southeast wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain, mainly before 10pm. Low around 39. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain. High near 50. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Rain. Snow level 5700 feet lowering to 5000 feet after midnight . Mostly cloudy, with a low around 32.
Saturday
Rain likely, possibly mixed with snow, becoming all rain after 10am. Snow level 4500 feet. Mostly cloudy, with a high near 44.
Saturday Night
A chance of rain before 10pm, then a chance of rain and snow. Snow level 4100 feet. Mostly cloudy, with a low around 29.
Sunday
A chance of rain and snow. Snow level 3800 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 28.
Monday
A chance of rain and snow. Snow level 4200 feet rising to 4800 feet in the afternoon. Partly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Fort Jones CA
 41.58°N 122.97°W (Elev. 2946 ft)
Last Update:
4:16 am PST Dec 30, 2025
Forecast Valid:
8am PST Dec 30, 2025-6pm PST Jan 5, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation