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

71°F

22°C

Humidity 23%
Wind Speed N 5 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 09 Sep 01:09 AM PDT
Extended Forecast for

Hidden Valley Lake CA

  • Overnight

    Overnight: Partly cloudy, with a low around 56. North northwest wind around 7 mph.

    Low: 56 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 99. Northwest wind around 6 mph becoming calm.

    High: 99 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61. West southwest wind 6 to 10 mph becoming north northwest in the evening.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 100. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon.

    High: 100 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60. West wind 6 to 11 mph becoming light  after midnight.

    Low: 60 °F

    Mostly Clear

  • Friday

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

    High: 94 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Saturday Night

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

    Low: 50 °F

    Mostly Clear
    and Breezy
    then Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 56. North northwest wind around 7 mph.
Wednesday
Mostly sunny and hot, with a high near 99. Northwest wind around 6 mph becoming calm.
Wednesday Night
Mostly clear, with a low around 61. West southwest wind 6 to 10 mph becoming north northwest in the evening.
Thursday
Mostly sunny and hot, with a high near 100. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 60. West wind 6 to 11 mph becoming light after midnight.
Friday
Sunny, with a high near 94. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Friday Night
Mostly clear, with a low around 53.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 50. Breezy.
Sunday
Sunny, with a high near 82.
Sunday Night
Clear, with a low around 52.
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)
10:42 pm PDT Sep 8, 2026
1am 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

National Digital Forecast Database