Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Central U.S. and Northeast; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Severe thunderstorms are forecast across parts of the Upper Midwest into the Great Lakes, the Northeast, and the central High Plains. Critical fire weather conditions will continue across portions of the Four Corners and Great Basin. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

75°F

24°C

Humidity 23%
Wind Speed N 18 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 01 Jul 06:55 PM PDT
Extended Forecast for

10 Miles SSE Montague CA

  • Tonight

    Tonight: Mostly clear, with a low around 45. North wind 10 to 15 mph becoming light and variable  after midnight. Winds could gust as high as 22 mph.

    Low: 45 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 87. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 87 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy during the early evening, then gradual clearing, with a low around 50. North wind 10 to 15 mph becoming light and variable  in the evening. Winds could gust as high as 22 mph.

    Low: 50 °F

    Gradual
    Clearing

  • Friday

    Friday: Sunny, with a high near 91. Calm wind.

    High: 91 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 54. North wind 8 to 13 mph becoming light and variable  after midnight. Winds could gust as high as 20 mph.

    Low: 54 °F

    Clear

  • Independence Day

    Independence Day: Sunny and hot, with a high near 96.

    High: 96 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 45. North wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 22 mph.
Thursday
Increasing clouds, with a high near 87. Calm wind becoming north northwest around 6 mph in the afternoon.
Thursday Night
Mostly cloudy during the early evening, then gradual clearing, with a low around 50. North wind 10 to 15 mph becoming light and variable in the evening. Winds could gust as high as 22 mph.
Friday
Sunny, with a high near 91. Calm wind.
Friday Night
Clear, with a low around 54. North wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Independence Day
Sunny and hot, with a high near 96.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Sunny and hot, with a high near 97.
Sunday Night
Partly cloudy, with a low around 57.
Monday
Sunny, with a high near 95.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Sunny, with a high near 93.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles SSE Montague CA
 41.6°N 122.43°W (Elev. 2598 ft)
4:40 pm PDT Jul 1, 2026
7pm PDT Jul 1, 2026-6pm PDT Jul 8, 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