Severe Thunderstorms and Heavy Rainfall in the Ohio Valley and Great Lakes; Winter Weather in the Northern Tier

A slow moving front extending from the Great Lakes region into the Plains will bring snow, wintry mix, and ice accumulation north of the front from the Upper Midwest into New England, and severe weather and heavy rain south of the front. Scattered severe thunderstorms with damaging gusts, severe hail, and heavy rain are expected across parts of the Great Lakes/Midwest through tonight. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Mostly Cloudy

57°F

14°C

Humidity 47%
Wind Speed SSE 17 MPH
Barometer 29.76 in (1007.79 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 31 Mar 05:15 PM PDT
Extended Forecast for

6 Miles WSW Fort Jones CA

Winter Weather Advisory April 1, 08:00pm until April 2, 11:00am
Click here for hazard details and duration
Winter Weather Advisory
  • This Afternoon

    This Afternoon: A 40 percent chance of rain.  Partly sunny, with a high near 58. Southwest wind around 10 mph.

    High: 58 °F

    Chance Rain

  • Tonight

    Tonight: Rain likely, mainly between midnight and 5am.  Snow level 6300 feet lowering to 5300 feet after midnight . Increasing clouds, with a low around 38. Southwest wind 6 to 10 mph becoming east northeast in the evening.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Chance Rain
    then Rain
    Likely

  • Wednesday

    Wednesday: Rain, mainly before 5pm, then showers and possibly a thunderstorm after 5pm.  Snow level 5400 feet. High near 50. East southeast wind 10 to 16 mph becoming southwest in the afternoon. Winds could gust as high as 24 mph.  Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 50 °F

    Showers

  • Wednesday Night

    Wednesday Night: Rain before 8pm, then rain, possibly mixed with snow between 8pm and 11pm, then snow after 11pm. Some thunder is also possible.  Snow level 4800 feet lowering to 2900 feet after midnight . Low around 29. West southwest wind 8 to 13 mph, with gusts as high as 20 mph.  Chance of precipitation is 100%. New snow accumulation of around an inch possible.

    Low: 29 °F

    Rain/Snow
    then Snow

  • Thursday

    Thursday: Snow likely before 11am, then a chance of rain and snow between 11am and 2pm, then a chance of rain after 2pm.  Snow level rising to 3900 feet in the afternoon. Partly sunny, with a high near 51. West southwest wind 5 to 7 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 51 °F

    Rain/Snow
    Likely then
    Chance
    Rain/Snow

  • Thursday Night

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

    Low: 25 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 31.

    Low: 31 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

Detailed Forecast

This Afternoon
A 40 percent chance of rain. Partly sunny, with a high near 58. Southwest wind around 10 mph.
Tonight
Rain likely, mainly between midnight and 5am. Snow level 6300 feet lowering to 5300 feet after midnight . Increasing clouds, with a low around 38. Southwest wind 6 to 10 mph becoming east northeast in the evening. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain, mainly before 5pm, then showers and possibly a thunderstorm after 5pm. Snow level 5400 feet. High near 50. East southeast wind 10 to 16 mph becoming southwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Wednesday Night
Rain before 8pm, then rain, possibly mixed with snow between 8pm and 11pm, then snow after 11pm. Some thunder is also possible. Snow level 4800 feet lowering to 2900 feet after midnight . Low around 29. West southwest wind 8 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.
Thursday
Snow likely before 11am, then a chance of rain and snow between 11am and 2pm, then a chance of rain after 2pm. Snow level rising to 3900 feet in the afternoon. Partly sunny, with a high near 51. West southwest wind 5 to 7 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday Night
Mostly clear, with a low around 25.
Friday
Sunny, with a high near 61.
Friday Night
Clear, with a low around 31.
Saturday
Sunny, with a high near 69.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Mostly sunny, with a high near 73.
Sunday Night
Partly cloudy, with a low around 41.
Monday
Mostly sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Fort Jones CA
 41.58°N 122.97°W (Elev. 2946 ft)
4:41 pm PDT Mar 31, 2026
5pm PDT Mar 31, 2026-6pm PDT Apr 7, 2026
 
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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