Extreme Heat and Fire Weather Conditions in the West; Heavy Rain in the Southeast; Poor Air Quality

Extreme heat will begin to peak across the Desert Southwest. Multiple days of hot, dry and windy conditions are expected to bring fire weather concerns for portions of the Four Corners region into the central Great Basin and Rockies. Heavy rainfall and a flash flooding threat continues in the Southeast. Poor air quality persists from the Upper Midwest into the Northeast due to wildfire smoke. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

81°F

27°C

Humidity 24%
Wind Speed N 13 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 05 Aug 07:20 PM PDT
Extended Forecast for

Etna CA

  • Tonight

    Tonight: Mostly clear, with a low around 52. North northwest wind 5 to 7 mph becoming southwest in the evening.

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny during the morning, then sunny during the afternoon, with a high near 84. Calm wind becoming north northeast 5 to 7 mph in the afternoon.

    High: 84 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54. North wind 5 to 9 mph becoming light  after midnight.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 86. Calm wind becoming north 5 to 8 mph in the afternoon.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 52. Northeast wind 5 to 8 mph.

    Low: 52 °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 62.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 52. North northwest wind 5 to 7 mph becoming southwest in the evening.
Wednesday
Partly sunny during the morning, then sunny during the afternoon, with a high near 84. Calm wind becoming north northeast 5 to 7 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 54. North wind 5 to 9 mph becoming light after midnight.
Thursday
Sunny, with a high near 86. Calm wind becoming north 5 to 8 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 52. Northeast wind 5 to 8 mph.
Friday
Sunny, with a high near 91.
Friday Night
Mostly clear, with a low around 62.
Saturday
Sunny, with a high near 95.
Saturday Night
Partly cloudy, with a low around 66.
Sunday
Sunny and hot, with a high near 99.
Sunday Night
Mostly clear, with a low around 67.
Monday
Sunny and hot, with a high near 100.
Monday Night
Mostly clear, with a low around 65.
Tuesday
Sunny and hot, with a high near 97.
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ABOUT THIS FORECAST

 
Point Forecast:
Etna CA
 41.46°N 122.9°W (Elev. 3061 ft)
4:40 pm PDT Aug 5, 2025
7pm PDT Aug 5, 2025-6pm PDT Aug 12, 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