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Isaias Expected To Be A Strong Hurricane Approaching The Northern Gulf Coast Friday

Isaias is expected to strengthen and be a strong hurricane when it approaches the northern Gulf Coast on Friday. Damaging hurricane-force winds and life-threatening storm surge impacts are expected Friday into Saturday. Isaias will bring heavy rainfall to the northern Gulf Coast and much of the Southeast U.S. Friday into the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

KNOXVILLE CREEK (KNXC1)

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

NA

65°F

18°C

Humidity 33%
Wind Speed N 4 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Last update 07 Oct 10:09 PM PDT
Extended Forecast for

Hidden Valley Lake CA

Heat Advisory October 7, 10:45pm until October 8, 11:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory October 7, 10:45pm until October 8, 11:00pm

    NOW until 11:00pm Thu

    Heat Advisory

  • Tonight

    Low: 56 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 97. Light and variable wind becoming west southwest 5 to 8 mph in the afternoon.

    High: 97 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 59. North northwest wind around 7 mph.

    Low: 59 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 93. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 93 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 50. West southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.

    Low: 50 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 74. Calm wind becoming west southwest 5 to 7 mph in the afternoon.

    High: 74 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 56. Northwest wind around 5 mph.
Thursday
Sunny, with a high near 97. Light and variable wind becoming west southwest 5 to 8 mph in the afternoon.
Thursday Night
Clear, with a low around 59. North northwest wind around 7 mph.
Friday
Sunny, with a high near 93. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Friday Night
Clear, with a low around 50. West southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.
Saturday
Sunny, with a high near 74. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 45.
Sunday
Sunny, with a high near 70.
Sunday Night
Mostly clear, with a low around 45.
Columbus Day
Sunny, with a high near 70.
Monday Night
Mostly clear, with a low around 43.
Tuesday
Sunny, with a high near 73.
Tuesday Night
Patchy fog. Otherwise, mostly clear, with a low around 44.
Wednesday
Patchy fog. Otherwise, sunny, with a high near 75.
Basemap Options
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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 pm PDT Oct 7, 2026
Forecast Valid:
10pm PDT Oct 7, 2026-6pm PDT Oct 14, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation