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

93°F

34°C

Humidity 12%
Wind Speed NE 3 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 03 Aug 04:15 PM PDT
Extended Forecast for

Etna CA

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

    Tonight: Clear, with a low around 61. North northeast wind 5 to 7 mph becoming calm  in the evening.

    Low: 61 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 101. Calm wind becoming north northeast 5 to 7 mph in the afternoon.

    High: 101 °F

    Hot

  • Tuesday Night

    Tuesday Night: Patchy smoke after 4am. Clear, with a low around 65. North wind 5 to 8 mph becoming calm  in the evening.

    Low: 65 °F

    Clear then
    Patchy Smoke

  • Wednesday

    Wednesday: Sunny and hot, with a high near 104. Calm wind becoming east around 6 mph in the afternoon.

    High: 104 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 65. North wind around 6 mph becoming south after midnight.

    Low: 65 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 102.

    High: 102 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 66.

    Low: 66 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 101.

    High: 101 °F

    Hot

  • Friday Night

    Friday Night: Clear, with a low around 64.

    Low: 64 °F

    Clear

Detailed Forecast

Tonight
Clear, with a low around 61. North northeast wind 5 to 7 mph becoming calm in the evening.
Tuesday
Sunny and hot, with a high near 101. Calm wind becoming north northeast 5 to 7 mph in the afternoon.
Tuesday Night
Patchy smoke after 4am. Clear, with a low around 65. North wind 5 to 8 mph becoming calm in the evening.
Wednesday
Sunny and hot, with a high near 104. Calm wind becoming east around 6 mph in the afternoon.
Wednesday Night
Clear, with a low around 65. North wind around 6 mph becoming south after midnight.
Thursday
Sunny and hot, with a high near 102.
Thursday Night
Clear, with a low around 66.
Friday
Sunny and hot, with a high near 101.
Friday Night
Clear, with a low around 64.
Saturday
Sunny and hot, with a high near 98.
Saturday Night
Clear, with a low around 61.
Sunday
Sunny, with a high near 95.
Sunday Night
Clear, with a low around 59.
Monday
Sunny, with a high near 93.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Etna CA
 41.46°N 122.9°W (Elev. 3061 ft)
3:41 pm PDT Aug 3, 2026
4pm PDT Aug 3, 2026-6pm PDT Aug 10, 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