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

KNOXVILLE CREEK (KNXC1)

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

NA

99°F

37°C

Humidity 18%
Wind Speed S 7 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Heat Index96°F (36°C)
Last update 04 Aug 03:09 PM PDT
Extended Forecast for

Hidden Valley Lake CA

Heat Advisory August 4, 03:47pm until August 4, 11:00pm
Click here for hazard details and duration
...
  •  
    Heat Advisory August 4, 03:47pm until August 4, 11:00pm

    NOW until 11:00pm Tue

    Heat Advisory

  • Tonight

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 97. Calm wind becoming southeast 5 to 9 mph in the afternoon.

    High: 97 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 56. Southwest wind 5 to 9 mph becoming calm  in the evening.

    Low: 56 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 99. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 99 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 59. Southwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 59 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 101. Calm wind becoming south around 6 mph in the afternoon.

    High: 101 °F

    Hot

  • Friday Night

    Friday Night: Clear, with a low around 62.

    Low: 62 °F

    Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 103.

    High: 103 °F

    Hot

Detailed Forecast

Tonight
Mostly clear, with a low around 58. Southwest wind 5 to 10 mph becoming light and variable in the evening.
Wednesday
Sunny, with a high near 97. Calm wind becoming southeast 5 to 9 mph in the afternoon.
Wednesday Night
Clear, with a low around 56. Southwest wind 5 to 9 mph becoming calm in the evening.
Thursday
Sunny and hot, with a high near 99. Calm wind becoming south 5 to 8 mph in the afternoon.
Thursday Night
Clear, with a low around 59. Southwest wind 5 to 8 mph becoming calm in the evening.
Friday
Sunny and hot, with a high near 101. Calm wind becoming south around 6 mph in the afternoon.
Friday Night
Clear, with a low around 62.
Saturday
Sunny and hot, with a high near 103.
Saturday Night
Mostly clear, with a low around 63.
Sunday
Sunny and hot, with a high near 102.
Sunday Night
Clear, with a low around 62.
Monday
Sunny, with a high near 97.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Sunny, with a high near 93.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Hidden Valley Lake CA
 38.8°N 122.51°W (Elev. 1240 ft)
2:10 pm PDT Aug 4, 2026
3pm PDT Aug 4, 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