Severe Thunderstorms and Heavy Rain in the Mid-Atlantic; Heat Persists Across the South

Scattered severe thunderstorms and excessive rainfall are possible into the night in the Mid Atlantic, and heavy rain will shift to Virginia and the Carolinas on Friday. Severe thunderstorms are also possible in the Central Plains into the Upper MS Valley and the Deep South tonight. Dangerous heat persists across the Southern Plains and Lower MS Valley and heat will expand into the Southwest. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

93°F

34°C

Humidity 10%
Wind Speed SSE 18 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 20 Aug 06:00 PM PDT
Extended Forecast for

8 Miles E Montague CA

Red Flag Warning until August 20, 09:00pm
Red Flag Warning August 21, 02:00pm until August 21, 09:00pm
Click here for hazard details and duration
...
Red Flag Warning
  •  
    Red Flag Warning until August 20, 09:00pm

    NOW until 9:00pm Thu

    Red Flag Warning

  • Tonight

    Low: 65 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 94. Breezy, with a north northwest wind 5 to 10 mph becoming south 18 to 28 mph. Winds could gust as high as 41 mph.

    High: 94 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Friday Night

    Friday Night: Cloudy during the early evening, then gradual clearing, with a low around 57. Breezy, with a south wind 19 to 24 mph becoming south southwest 6 to 11 mph in the evening. Winds could gust as high as 37 mph.

    Low: 57 °F

    Gradual
    Clearing and
    Breezy then
    Clear

  • Saturday

    Saturday: Sunny, with a high near 88. Light and variable wind becoming west 5 to 10 mph in the afternoon.

    High: 88 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 53. West northwest wind 13 to 18 mph becoming light and variable  after midnight. Winds could gust as high as 28 mph.

    Low: 53 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Sunday Night

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

    Low: 56 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

Detailed Forecast

Tonight
Mostly cloudy, with a low around 65. South wind 13 to 18 mph becoming light and variable. Winds could gust as high as 28 mph.
Friday
Mostly cloudy, with a high near 94. Breezy, with a north northwest wind 5 to 10 mph becoming south 18 to 28 mph. Winds could gust as high as 41 mph.
Friday Night
Cloudy during the early evening, then gradual clearing, with a low around 57. Breezy, with a south wind 19 to 24 mph becoming south southwest 6 to 11 mph in the evening. Winds could gust as high as 37 mph.
Saturday
Sunny, with a high near 88. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Saturday Night
Clear, with a low around 53. West northwest wind 13 to 18 mph becoming light and variable after midnight. Winds could gust as high as 28 mph.
Sunday
Sunny, with a high near 88.
Sunday Night
Mostly clear, with a low around 56.
Monday
Sunny, with a high near 90.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Sunny, with a high near 90.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
Sunny, with a high near 90.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 89.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles E Montague CA
 41.72°N 122.38°W (Elev. 2799 ft)
4:40 pm PDT Aug 20, 2026
6pm PDT Aug 20, 2026-6pm PDT Aug 27, 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