Heavy Rainfall and Severe Thunderstorm Threats for the Plains and Southeast

A frontal boundary extending from the western High Plains to the Southeast will focus additional showers and thunderstorms this weekend. Some of these storms may become severe, alongside frequent lightning, and isolated instances of flash flooding. Meanwhile dry conditions will continue for the Great Basin where fire weather concerns linger. For the mid-Atlantic and Northeast, seasonable weather. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

55°F

13°C

Humidity 96%
Wind Speed N 0 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 03 Aug 04:53 AM PDT
Extended Forecast for

Montague CA

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 5pm.  Increasing clouds, with a high near 87. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 87 °F

    Sunny then
    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 11pm.  Partly cloudy, with a low around 53. North northeast wind 5 to 9 mph becoming light north northwest  after midnight.  Chance of precipitation is 30%.

    Low: 53 °F

    Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 84. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 53. North wind 5 to 10 mph becoming light  after midnight.

    Low: 53 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Increasing clouds, with a high near 87. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Tonight
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 11pm. Partly cloudy, with a low around 53. North northeast wind 5 to 9 mph becoming light north northwest after midnight. Chance of precipitation is 30%.
Monday
Sunny, with a high near 84. Calm wind becoming north northwest around 5 mph in the afternoon.
Monday Night
Clear, with a low around 53. North wind 5 to 10 mph becoming light after midnight.
Tuesday
Sunny, with a high near 88. Calm wind becoming west northwest around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Sunny, with a high near 89.
Thursday Night
Partly cloudy, with a low around 57.
Friday
Sunny, with a high near 91.
Friday Night
Mostly clear, with a low around 60.
Saturday
Sunny, with a high near 94.
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ABOUT THIS FORECAST

 
Point Forecast:
Montague CA
 41.74°N 122.53°W (Elev. 2589 ft)
4:40 am PDT Aug 3, 2025
5am PDT Aug 3, 2025-6pm PDT Aug 9, 2025
 
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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