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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Sunday could bring areas of flooding to parts of the upper Midwest, central Great Lakes, southern New England and Virginia/North Carolina tidewater region. Read More >

Current conditions at

KNOXVILLE CREEK (KNXC1)

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

NA

51°F

11°C

Humidity 89%
Wind Speed NNE 3 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Last update 18 Sep 02:09 AM PDT
Extended Forecast for

Hidden Valley Lake CA

  • Overnight

    Overnight: Mostly clear, with a low around 50. Northwest wind around 5 mph.

    Low: 50 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 87. Northwest wind around 5 mph becoming calm in the morning.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 55. West northwest wind around 6 mph.

    Low: 55 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 91. Light and variable wind.

    High: 91 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 55. West southwest wind 5 to 8 mph becoming calm in the evening.

    Low: 55 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 88. Calm wind becoming south around 5 mph in the afternoon.

    High: 88 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Monday Night

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

    Low: 54 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 50. Northwest wind around 5 mph.
Friday
Sunny, with a high near 87. Northwest wind around 5 mph becoming calm in the morning.
Friday Night
Clear, with a low around 55. West northwest wind around 6 mph.
Saturday
Sunny, with a high near 91. Light and variable wind.
Saturday Night
Partly cloudy, with a low around 55. West southwest wind 5 to 8 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 88. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 54.
Monday
Sunny, with a high near 89.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Sunny, with a high near 91.
Tuesday Night
Clear, with a low around 56.
Wednesday
Sunny, with a high near 93.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hidden Valley Lake CA
 38.8°N 122.51°W (Elev. 1240 ft)
Last Update:
2:10 am PDT Sep 18, 2026
Forecast Valid:
2am PDT Sep 18, 2026-6pm PDT Sep 24, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation