Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Partly Cloudy

34°F

1°C

Humidity 86%
Wind Speed E 3 MPH
Barometer 29.66 in (1004.4 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 12 Apr 04:20 AM PDT
Extended Forecast for

3 Miles SSW Fort Jones CA

Winter Weather Advisory April 12, 04:32am until April 12, 11:00am
Click here for hazard details and duration
...
  •  
    Winter Weather Advisory April 12, 04:32am until April 12, 11:00am

    NOW until 11:00am Sun

    Winter Weather Advisory

  • Today

    High: 53 °F

    Showers
    Likely

  • Tonight

    Tonight: A 30 percent chance of rain, mainly before 9pm.  Snow level 5100 feet lowering to 4300 feet after midnight . Mostly cloudy, with a low around 36. Southwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 36 °F

    Chance Rain
    then Mostly
    Cloudy

  • Monday

    Monday: Partly sunny, with a high near 55. Calm wind becoming west northwest 5 to 8 mph in the afternoon.

    High: 55 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 35. Northwest wind 5 to 9 mph becoming calm  in the evening.

    Low: 35 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 62. Calm wind becoming west southwest 5 to 8 mph in the afternoon.

    High: 62 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Rain, mainly after 11am.  Snow level 4600 feet rising to 5600 feet in the afternoon. High near 53. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F

    Rain

  • Wednesday Night

    Wednesday Night: A chance of rain before 11pm.  Snow level 5400 feet lowering to 2900 feet after midnight . Partly cloudy, with a low around 27.

    Low: 27 °F

    Chance Rain
    then Partly
    Cloudy

Detailed Forecast

Today
A chance of rain and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 5pm, then a chance of rain and thunderstorms after 5pm. Snow level 3400 feet rising to 5100 feet in the afternoon. Partly sunny, with a high near 53. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A 30 percent chance of rain, mainly before 9pm. Snow level 5100 feet lowering to 4300 feet after midnight . Mostly cloudy, with a low around 36. Southwest wind 5 to 7 mph becoming calm in the evening.
Monday
Partly sunny, with a high near 55. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 35. Northwest wind 5 to 9 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 62. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Rain, mainly after 11am. Snow level 4600 feet rising to 5600 feet in the afternoon. High near 53. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
A chance of rain before 11pm. Snow level 5400 feet lowering to 2900 feet after midnight . Partly cloudy, with a low around 27.
Thursday
Sunny, with a high near 54.
Thursday Night
Clear, with a low around 27.
Friday
Sunny, with a high near 63.
Friday Night
Partly cloudy, with a low around 33.
Saturday
Mostly sunny, with a high near 68.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Fort Jones CA
 41.56°N 122.84°W (Elev. 2733 ft)
3:42 am PDT Apr 12, 2026
4am PDT Apr 12, 2026-6pm PDT Apr 18, 2026
 
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Additional Resources

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