Showers and Storms continue across the East; Heat, Critical Fire Weather, Drought, and Poor Air Quality continues in the West

A series of fronts will focus locally heavy showers and storms across portions of the central and eastern U.S. through the end of the workweek. Dangerous to extreme heat continues across the Southwest U.S., eventually spreading eastward over the weekend into early next week. Elevated fire weather conditions continue across the Great Basin, with degraded air quality lingering across the Northwest. Read More >

Hazardous Weather Conditions

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

66°F

19°C

Humidity 37%
Wind Speed N 0 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 05 Aug 02:00 AM PDT
Extended Forecast for

5 Miles W Yreka CA

Heat Advisory August 5, 02:15am until August 6, 11:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 5, 02:15am until August 6, 11:00pm

    NOW until 11:00pm Thu

    Heat Advisory

  • Overnight

    Low: 63 °F

    Patchy Smoke

  • Wednesday

    Wednesday: Patchy smoke before noon. Sunny, with a high near 92. Calm wind becoming west around 6 mph in the afternoon.

    High: 92 °F

    Patchy Smoke
    then Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 66. West northwest wind 6 to 11 mph becoming light and variable  in the evening.

    Low: 66 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 92. Calm wind becoming west around 6 mph in the afternoon.

    High: 92 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 66. West northwest wind 5 to 10 mph becoming light  in the evening.

    Low: 66 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 66.

    Low: 66 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

Overnight
Patchy smoke. Clear, with a low around 63. Calm wind.
Wednesday
Patchy smoke before noon. Sunny, with a high near 92. Calm wind becoming west around 6 mph in the afternoon.
Wednesday Night
Clear, with a low around 66. West northwest wind 6 to 11 mph becoming light and variable in the evening.
Thursday
Sunny, with a high near 92. Calm wind becoming west around 6 mph in the afternoon.
Thursday Night
Clear, with a low around 66. West northwest wind 5 to 10 mph becoming light in the evening.
Friday
Sunny, with a high near 92.
Friday Night
Clear, with a low around 66.
Saturday
Sunny, with a high near 88.
Saturday Night
Clear, with a low around 61.
Sunday
Sunny, with a high near 84.
Sunday Night
Clear, with a low around 58.
Monday
Sunny, with a high near 82.
Monday Night
Clear, with a low around 58.
Tuesday
Sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles W Yreka CA
 41.75°N 122.74°W (Elev. 4117 ft)
11:26 pm PDT Aug 4, 2026
2am PDT Aug 5, 2026-6pm PDT Aug 11, 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