Storms and Heavy Rainfall in the Plains and Southern Appalachians; Hazardous Heat in the South and Southeast

Severe thunderstorms with heavy rainfall will be possible across the southern Appalachians through this evening. Thunderstorms are also expected from the northern/central Plains into portions of the Midwest through Tuesday, and severe storms may produce large hail and damaging wind gusts. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

91°F

33°C

Humidity 13%
Wind Speed WNW 6 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 17 Aug 04:53 PM PDT
Extended Forecast for

4 Miles S Montague CA

  • Tonight

    Tonight: Mostly clear, with a low around 57. North wind 5 to 8 mph becoming calm  in the evening.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 93. Calm wind becoming north 5 to 8 mph in the afternoon.

    High: 93 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 58. North wind 5 to 10 mph becoming light  in the evening. Winds could gust as high as 20 mph.

    Low: 58 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 95. Light and variable wind.

    High: 95 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. North northwest wind 5 to 8 mph becoming calm  in the evening. Winds could gust as high as 18 mph.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Friday Night

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

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 57. North wind 5 to 8 mph becoming calm in the evening.
Tuesday
Increasing clouds, with a high near 93. Calm wind becoming north 5 to 8 mph in the afternoon.
Tuesday Night
Increasing clouds, with a low around 58. North wind 5 to 10 mph becoming light in the evening. Winds could gust as high as 20 mph.
Wednesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 95. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 59. North northwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Thursday
Sunny, with a high near 95.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Sunny, with a high near 91.
Friday Night
Mostly clear, with a low around 55.
Saturday
Sunny, with a high near 87.
Saturday Night
Clear, with a low around 53.
Sunday
Sunny, with a high near 90.
Sunday Night
Mostly clear, with a low around 56.
Monday
Sunny, with a high near 91.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Montague CA
 41.67°N 122.54°W (Elev. 2799 ft)
4:40 pm PDT Aug 17, 2026
5pm PDT Aug 17, 2026-6pm PDT Aug 24, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database