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

Arctic Front Brings Winter Weather and Colder Temperatures to the Eastern U.S.

A series of cold fronts will bring heavy lake effect snow to the northern Great Lakes. The fronts will merge over the Ohio Valley and bring colder temperatures east of the Mississippi River later today into the end of the week. Additionally, wintry weather will develop over the Ohio Valley, Appalachians, and Northeast as rain switches over to snow tonight into Thursday morning. Read More >

Hazardous Weather Conditions

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

48°F

9°C

Humidity 57%
Wind Speed S 3 MPH
Barometer 30.41 in (1029.8 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 14 Jan 04:35 PM PST
Extended Forecast for

6 Miles WSW Fort Jones CA

Freezing Fog Advisory January 14, 10:00pm until January 15, 12:00pm
Click here for hazard details and duration
Freezing Fog Advisory

  • Tonight

    Tonight: Patchy fog between 7pm and 10pm. Patchy freezing fog after 10pm. Otherwise, mostly clear, with a low around 29. Calm wind.

    Low: 29 °F

    Patchy
    Freezing Fog
    and Patchy
    Fog

  • Thursday

    Thursday: Patchy freezing fog before 1pm. Sunny, with a high near 45. Calm wind.

    High: 45 °F

    Patchy
    Freezing Fog

  • Thursday Night

    Thursday Night: Patchy freezing fog after 7pm. Clear, with a low around 29. Calm wind.

    Low: 29 °F

    Patchy
    Freezing Fog

  • Friday

    Friday: Patchy freezing fog before 10am. Sunny, with a high near 46. Calm wind.

    High: 46 °F

    Patchy
    Freezing Fog
    then Sunny

  • Friday Night

    Friday Night: Patchy fog. Otherwise, clear, with a low around 29. Calm wind.

    Low: 29 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 10am. Otherwise, sunny, with a high near 48.

    High: 48 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 10pm. Otherwise, mostly clear, with a low around 31.

    Low: 31 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 10am. Otherwise, sunny, with a high near 44.

    High: 44 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Patchy fog. Otherwise, clear, with a low around 28.

    Low: 28 °F

    Patchy Fog

Detailed Forecast

Tonight
Patchy fog between 7pm and 10pm. Patchy freezing fog after 10pm. Otherwise, mostly clear, with a low around 29. Calm wind.
Thursday
Patchy freezing fog before 1pm. Sunny, with a high near 45. Calm wind.
Thursday Night
Patchy freezing fog after 7pm. Clear, with a low around 29. Calm wind.
Friday
Patchy freezing fog before 10am. Sunny, with a high near 46. Calm wind.
Friday Night
Patchy fog. Otherwise, clear, with a low around 29. Calm wind.
Saturday
Patchy fog before 10am. Otherwise, sunny, with a high near 48.
Saturday Night
Patchy fog after 10pm. Otherwise, mostly clear, with a low around 31.
Sunday
Patchy fog before 10am. Otherwise, sunny, with a high near 44.
Sunday Night
Patchy fog. Otherwise, clear, with a low around 28.
M.L.King Day
Patchy fog before 10am. Otherwise, sunny, with a high near 46.
Monday Night
Patchy fog. Otherwise, mostly clear, with a low around 27.
Tuesday
Patchy fog. Otherwise, sunny, with a high near 43.
Tuesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 33.
Wednesday
Patchy fog. Otherwise, mostly sunny, with a high near 51.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Fort Jones CA
 41.58°N 122.97°W (Elev. 2946 ft)
Last Update:
3:41 pm PST Jan 14, 2026
Forecast Valid:
4pm PST Jan 14, 2026-6pm PST Jan 21, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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