Extreme Heat in the Southwest; Severe Weather in the Northern Plains; Heavy Rain in the East

Extreme heat continues across the Southwest as temperatures may top 120 degrees. The heat may expand across the West and south-central U.S. into the middle of the month. Severe thunderstorms capable of severe wind gusts and large hail will be the primary hazards today across the northern Plains into the upper Midwest. Rainfall could be locally heavy across the Eastern U.S. today. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

73°F

23°C

Humidity 23%
Wind Speed NE 6 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 04 Aug 01:00 AM PDT
Extended Forecast for

22 Miles ENE Happy Camp CA

Heat Advisory August 4, 11:00am until August 6, 11:00pm
Red Flag Warning August 4, 01:20am until August 4, 09:00pm
Red Flag Warning August 5, 02:00pm until August 5, 09:00pm
Click here for hazard details and duration
Heat Advisory
Red Flag Warning
Red Flag Warning
  •  
    Red Flag Warning August 4, 01:20am until August 4, 09:00pm

    NOW until 9:00pm Tue

    Red Flag Warning

  • Overnight

    Low: 56 °F

    Clear

  • Tuesday

    Tuesday: Patchy smoke before 1pm. Sunny, with a high near 80. East southeast wind 6 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.

    High: 80 °F

    Patchy Smoke

  • Tuesday Night

    Tuesday Night: Patchy smoke after 8pm. Mostly clear, with a low around 62. North northwest wind 5 to 11 mph becoming east after midnight. Winds could gust as high as 18 mph.

    Low: 62 °F

    Patchy Smoke

  • Wednesday

    Wednesday: Sunny, with a high near 82. Southeast wind 5 to 9 mph becoming west in the afternoon.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 62. West northwest wind 7 to 10 mph becoming northeast after midnight.

    Low: 62 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 61.

    Low: 61 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

Detailed Forecast

Overnight
Clear, with a low around 56. North northeast wind around 11 mph becoming east. Winds could gust as high as 18 mph.
Tuesday
Patchy smoke before 1pm. Sunny, with a high near 80. East southeast wind 6 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.
Tuesday Night
Patchy smoke after 8pm. Mostly clear, with a low around 62. North northwest wind 5 to 11 mph becoming east after midnight. Winds could gust as high as 18 mph.
Wednesday
Sunny, with a high near 82. Southeast wind 5 to 9 mph becoming west in the afternoon.
Wednesday Night
Clear, with a low around 62. West northwest wind 7 to 10 mph becoming northeast after midnight.
Thursday
Sunny, with a high near 81.
Thursday Night
Clear, with a low around 61.
Friday
Sunny, with a high near 77.
Friday Night
Clear, with a low around 58.
Saturday
Sunny, with a high near 72.
Saturday Night
Clear, with a low around 54.
Sunday
Sunny, with a high near 68.
Sunday Night
Clear, with a low around 52.
Monday
Sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
22 Miles ENE Happy Camp CA
 41.94°N 122.98°W (Elev. 6998 ft)
11:15 pm PDT Aug 3, 2026
1am PDT Aug 4, 2026-6pm PDT Aug 10, 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