Heat Persists in the South Central U.S. and Southwest; Heavy rains in the Desert Southwest and Central Plains

Sweltering heat remains across the South-Central Plains, Lower/Middle Mississippi Valley, and the Southwest this week with limited nighttime relief. Thunderstorms will bring heavy rainfall leading to localized flash flooding in portions of the Desert Southwest and central Plains. Isolated strong to severe thunderstorms are possible across portions of the central Plains into the Northeast. Read More >

Current conditions at

KNOXVILLE CREEK (KNXC1)

Lat: 38.86194°NLon: 122.41722°WElev: 2200.0ft.

NA

85°F

29°C

Humidity 17%
Wind Speed NNE 7 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Heat Index82°F (28°C)
Last update 09 Sep 10:09 AM PDT
Extended Forecast for

Hidden Valley Lake CA

  • Today

    Today: Mostly sunny and hot, with a high near 99. Northwest wind around 5 mph becoming calm  in the morning.

    High: 99 °F

    Hot

  • Tonight

    Tonight: Partly cloudy, with a low around 61. West southwest wind 6 to 8 mph becoming northwest after midnight.

    Low: 61 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 100. Calm wind becoming west southwest 5 to 9 mph in the afternoon.

    High: 100 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60. West wind 5 to 10 mph.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 94. Light west wind becoming west southwest 5 to 9 mph in the afternoon.

    High: 94 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 55. West wind 5 to 11 mph.

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 50. Breezy.

    Low: 50 °F

    Mostly Clear
    and Breezy
    then Clear

  • Sunday

    Sunday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

Detailed Forecast

Today
Mostly sunny and hot, with a high near 99. Northwest wind around 5 mph becoming calm in the morning.
Tonight
Partly cloudy, with a low around 61. West southwest wind 6 to 8 mph becoming northwest after midnight.
Thursday
Mostly sunny and hot, with a high near 100. Calm wind becoming west southwest 5 to 9 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 60. West wind 5 to 10 mph.
Friday
Sunny, with a high near 94. Light west wind becoming west southwest 5 to 9 mph in the afternoon.
Friday Night
Mostly clear, with a low around 55. West wind 5 to 11 mph.
Saturday
Sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 50. Breezy.
Sunday
Sunny, with a high near 82.
Sunday Night
Clear, with a low around 53.
Monday
Sunny, with a high near 85.
Monday Night
Clear, with a low around 52.
Tuesday
Sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Hidden Valley Lake CA
 38.8°N 122.51°W (Elev. 1240 ft)
10:08 am PDT Sep 9, 2026
10am PDT Sep 9, 2026-6pm PDT Sep 15, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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