Heavy Rain and Flash Flooding in the West; Heat Expands in the Central U.S.

Monsoonal moisture will produce showers and thunderstorms with heavy rain over parts of the Southwest, Great Basin, and Central Rockies through Monday. Flash flooding is possible, especially in and around burn scars and in areas of steep terrain. Heat will persist across the Central U.S. early this week, spreading into the Ohio Valley and Mid-Atlantic later this week. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

85°F

29°C

Humidity 16%
Wind Speed W 3 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 30 Aug 05:53 PM PDT
Extended Forecast for

Yreka CA

Red Flag Warning August 31, 12:00pm until August 31, 08:00pm
Click here for hazard details and duration
Red Flag Warning
  • Tonight

    Tonight: Clear, with a low around 56. North wind 5 to 8 mph becoming calm  after midnight.

    Low: 56 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 90. Light and variable wind becoming south 6 to 11 mph in the afternoon. Winds could gust as high as 23 mph.

    High: 90 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55. South wind 6 to 11 mph becoming light and variable  in the evening. Winds could gust as high as 23 mph.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of rain after 11am.  Increasing clouds, with a high near 77. Light and variable wind becoming south 5 to 8 mph in the afternoon.

    High: 77 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before 11pm.  Mostly cloudy, with a low around 51. West wind 5 to 10 mph.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Rain Likely
    then Chance
    Rain

  • Wednesday

    Wednesday: A 30 percent chance of rain, mainly after 11am.  Mostly cloudy, with a high near 69.

    High: 69 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely.  Mostly cloudy, with a low around 53. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 53 °F

    Rain Likely

  • Thursday

    Thursday: Rain likely, mainly before 11am.  Mostly cloudy, with a high near 69.

    High: 69 °F

    Rain Likely

  • Thursday Night

    Thursday Night: A chance of rain.  Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance Rain

Detailed Forecast

Tonight
Clear, with a low around 56. North wind 5 to 8 mph becoming calm after midnight.
Monday
Sunny, with a high near 90. Light and variable wind becoming south 6 to 11 mph in the afternoon. Winds could gust as high as 23 mph.
Monday Night
Mostly clear, with a low around 55. South wind 6 to 11 mph becoming light and variable in the evening. Winds could gust as high as 23 mph.
Tuesday
A 30 percent chance of rain after 11am. Increasing clouds, with a high near 77. Light and variable wind becoming south 5 to 8 mph in the afternoon.
Tuesday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 51. West wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A 30 percent chance of rain, mainly after 11am. Mostly cloudy, with a high near 69.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 53. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain likely, mainly before 11am. Mostly cloudy, with a high near 69.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 48.
Friday
A chance of rain. Partly sunny, with a high near 71.
Friday Night
A chance of rain. Partly cloudy, with a low around 47.
Saturday
Sunny, with a high near 75.
Saturday Night
Mostly clear, with a low around 47.
Sunday
Sunny, with a high near 77.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Yreka CA
 41.72°N 122.65°W (Elev. 2762 ft)
4:40 pm PDT Aug 30, 2026
6pm PDT Aug 30, 2026-6pm PDT Sep 6, 2026
 
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Additional Resources

Radar & Satellite Image

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