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

Heavy Lake Effect Snow; Subfreezing Temperatures in the Eastern U.S.

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. The Arctic front will continue to bring increasing winds to the Northeast that will remain gusty. Subfreezing overnight low temperatures will be found as far south as the Gulf Coast. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

23°F

-5°C

Humidity 92%
Wind Speed N 0 MPH
Barometer 30.37 in (1028.45 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 30 Dec 01:20 AM PST
Extended Forecast for

13 Miles NW Fort Jones CA

  • Overnight

    Overnight: Widespread freezing fog. Mostly clear, with a low around 31. Light southeast wind.

    Low: 31 °F

    Freezing Fog

  • Tuesday

    Tuesday: Widespread freezing fog before 11am. Sunny, with a high near 51. South southeast wind around 5 mph becoming calm in the afternoon.

    High: 51 °F

    Freezing Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Widespread freezing fog after 10pm. Increasing clouds, with a low around 33. Light southeast wind.

    Low: 33 °F

    Freezing Fog

  • Wednesday

    Wednesday: A 30 percent chance of rain after 4pm. Widespread freezing fog before 10am. Partly sunny, with a high near 48. Light east southeast wind.

    High: 48 °F

    Freezing Fog
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after 10pm. Mostly cloudy, with a low around 38. Calm wind. Chance of precipitation is 60%.

    Low: 38 °F

    Rain Likely

  • New Year's Day

    New Year's Day: Rain. High near 50. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 50 °F

    Rain

  • Thursday Night

    Thursday Night: Rain, mainly before 10pm. Low around 38. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Rain then
    Chance Rain

  • Friday

    Friday: Rain. Mostly cloudy, with a high near 51.

    High: 51 °F

    Rain

  • Friday Night

    Friday Night: Rain. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Rain

Detailed Forecast

Overnight
Widespread freezing fog. Mostly clear, with a low around 31. Light southeast wind.
Tuesday
Widespread freezing fog before 11am. Sunny, with a high near 51. South southeast wind around 5 mph becoming calm in the afternoon.
Tuesday Night
Widespread freezing fog after 10pm. Increasing clouds, with a low around 33. Light southeast wind.
Wednesday
A 30 percent chance of rain after 4pm. Widespread freezing fog before 10am. Partly sunny, with a high near 48. Light east southeast wind.
Wednesday Night
Rain likely, mainly after 10pm. Mostly cloudy, with a low around 38. Calm wind. Chance of precipitation is 60%.
New Year's Day
Rain. High near 50. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain, mainly before 10pm. Low around 38. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain. Mostly cloudy, with a high near 51.
Friday Night
Rain. Mostly cloudy, with a low around 36.
Saturday
Rain likely. Snow level 4800 feet. Mostly cloudy, with a high near 47.
Saturday Night
A chance of rain. Snow level 4400 feet. Mostly cloudy, with a low around 34.
Sunday
A chance of rain. Snow level 4400 feet. Partly sunny, with a high near 47.
Sunday Night
A chance of rain. Snow level 4600 feet. Mostly cloudy, with a low around 35.
Monday
A chance of rain. Snow level 4600 feet. Mostly cloudy, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
13 Miles NW Fort Jones CA
 41.75°N 123.01°W (Elev. 1850 ft)
Last Update:
12:42 am PST Dec 30, 2025
Forecast Valid:
1am 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