Critical Fire Weather in the Plains; Severe Thunderstorms in the Upper Mississippi Valley and Great Lakes

Anomalously warm, dry and breezy conditions will bring elevated to critical fire weather conditions across portions of the Intermountain West into the central and southern Plains today. Strong to severe thunderstorms are possible across portions of the upper Mississippi River Valley to the Great Lakes tonight through the day Tuesday. Damaging gusts, hail, and heavy rainfall are likely. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Overcast

39°F

4°C

Humidity 80%
Wind Speed N 0 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 30 Mar 07:15 AM PDT
Extended Forecast for

15 Miles ESE Happy Camp CA

  • Today

    Today: A slight chance of rain and snow showers before 11am, then a chance of rain showers after 3pm.  Snow level 6500 feet rising to 7600 feet in the afternoon. Partly sunny, with a high near 51. West southwest wind 6 to 10 mph, with gusts as high as 18 mph.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 51 °F

    Slight Chance
    Rain/Snow
    then Chance
    Showers

  • Tonight

    Tonight: A 30 percent chance of showers after 3am.  Snow level 7200 feet lowering to 6500 feet after midnight . Mostly cloudy, with a low around 40. Southwest wind 7 to 9 mph.

    Low: 40 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of rain and snow showers before 8am, then a slight chance of snow showers between 8am and 11am, then a chance of rain and snow showers after 11am.  Snow level 6400 feet lowering to 5700 feet. Mostly cloudy, with a high near 45. West southwest wind 8 to 14 mph, with gusts as high as 25 mph.  Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 45 °F

    Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: A chance of rain and snow showers before 8pm, then snow likely.  Mostly cloudy, with a low around 36. West southwest wind 9 to 15 mph, with gusts as high as 24 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 36 °F

    Rain/Snow
    Likely then
    Snow Likely

  • Wednesday

    Wednesday: Snow before 5pm, then snow showers after 5pm. Some thunder is also possible.  High near 39. South southwest wind 13 to 16 mph, with gusts as high as 30 mph.  Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    High: 39 °F

    Snow

  • Wednesday Night

    Wednesday Night: Snow showers before 8pm, then snow, mainly after 8pm. Some thunder is also possible.  Low around 30. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 30 °F

    Snow Showers

  • Thursday

    Thursday: Snow likely, mainly before 11am.  Partly sunny, with a high near 37. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 37 °F

    Snow Likely

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

Detailed Forecast

Today
A slight chance of rain and snow showers before 11am, then a chance of rain showers after 3pm. Snow level 6500 feet rising to 7600 feet in the afternoon. Partly sunny, with a high near 51. West southwest wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Tonight
A 30 percent chance of showers after 3am. Snow level 7200 feet lowering to 6500 feet after midnight . Mostly cloudy, with a low around 40. Southwest wind 7 to 9 mph.
Tuesday
A slight chance of rain and snow showers before 8am, then a slight chance of snow showers between 8am and 11am, then a chance of rain and snow showers after 11am. Snow level 6400 feet lowering to 5700 feet. Mostly cloudy, with a high near 45. West southwest wind 8 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Tuesday Night
A chance of rain and snow showers before 8pm, then snow likely. Mostly cloudy, with a low around 36. West southwest wind 9 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday
Snow before 5pm, then snow showers after 5pm. Some thunder is also possible. High near 39. South southwest wind 13 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Snow showers before 8pm, then snow, mainly after 8pm. Some thunder is also possible. Low around 30. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Thursday
Snow likely, mainly before 11am. Partly sunny, with a high near 37. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Thursday Night
Mostly clear, with a low around 27.
Friday
Sunny, with a high near 52.
Friday Night
Mostly clear, with a low around 35.
Saturday
Sunny, with a high near 59.
Saturday Night
Mostly clear, with a low around 42.
Sunday
Mostly sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles ESE Happy Camp CA
 41.74°N 123.07°W (Elev. 5745 ft)
4:41 am PDT Mar 30, 2026
7am PDT Mar 30, 2026-6pm PDT Apr 5, 2026
 
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Additional Resources

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Hourly Weather Forecast

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