National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

KNOXVILLE CREEK (KNXC1)

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

NA

88°F

31°C

Humidity 14%
Wind Speed S 6 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Heat Index84°F (29°C)
Last update 21 Aug 12:09 PM PDT
Extended Forecast for

Hidden Valley Lake CA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 89. Southwest wind 5 to 14 mph, with gusts as high as 20 mph.

    High: 89 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 54. Southwest wind 9 to 14 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.

    Low: 54 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 91. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 91 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55. West southwest wind 5 to 9 mph becoming calm in the evening.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 92. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 92 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56. South southwest wind 5 to 8 mph becoming calm in the evening.

    Low: 56 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 89. Southwest wind 5 to 14 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 54. Southwest wind 9 to 14 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.
Saturday
Sunny, with a high near 91. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 55. West southwest wind 5 to 9 mph becoming calm in the evening.
Sunday
Sunny, with a high near 92. Calm wind becoming south 5 to 7 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 56. South southwest wind 5 to 8 mph becoming calm in the evening.
Monday
Sunny, with a high near 90.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Mostly sunny, with a high near 90.
Tuesday Night
Partly cloudy, with a low around 55.
Wednesday
Sunny, with a high near 93.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hidden Valley Lake CA
 38.8°N 122.51°W (Elev. 1240 ft)
Last Update:
10:05 am PDT Aug 21, 2026
Forecast Valid:
12pm PDT Aug 21, 2026-6pm PDT Aug 27, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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Chance of Precipitation