Severe Thunderstorms and Flooding from the Southern Plains to the Great Lakes; Record Heat in the East

Widely scattered severe thunderstorms may produce damaging winds, hail, and flash flooding from the southern Plains into the lower Great Lakes. Elevated to locally critical fire weather conditions will persist across portions of the Southwest and Southern High Plains due to gusty winds and dry conditions. An early-season heatwave will challenge temperature records across the eastern U.S.. Read More >

Current conditions at

KNOXVILLE CREEK (KNXC1)

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

NA

72°F

22°C

Humidity 21%
Wind Speed N 2 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 19 May 08:09 PM PDT
Extended Forecast for

4 Miles SSW Hidden Valley Lake CA

  • Tonight

    Tonight: Mostly clear, with a low around 52. West northwest wind around 5 mph becoming calm  in the evening.

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 89. Calm wind becoming south southwest 5 to 7 mph in the afternoon.

    High: 89 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52. Southwest wind 5 to 10 mph becoming light and variable  in the evening. Winds could gust as high as 20 mph.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 91. Calm wind becoming south southwest 5 to 7 mph in the afternoon.

    High: 91 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 52. Southwest wind 5 to 9 mph becoming calm  in the evening.

    Low: 52 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 88. Calm wind becoming south southwest 5 to 8 mph in the afternoon.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 48.

    Low: 48 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 2am.  Otherwise, mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear
    then Patchy
    Fog

Detailed Forecast

Tonight
Mostly clear, with a low around 52. West northwest wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 89. Calm wind becoming south southwest 5 to 7 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 52. Southwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.
Thursday
Sunny, with a high near 91. Calm wind becoming south southwest 5 to 7 mph in the afternoon.
Thursday Night
Clear, with a low around 52. Southwest wind 5 to 9 mph becoming calm in the evening.
Friday
Sunny, with a high near 88. Calm wind becoming south southwest 5 to 8 mph in the afternoon.
Friday Night
Clear, with a low around 48.
Saturday
Sunny, with a high near 82.
Saturday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 47.
Sunday
Patchy fog before 8am. Otherwise, sunny, with a high near 83.
Sunday Night
Mostly clear, with a low around 47.
Memorial Day
Sunny, with a high near 82.
Monday Night
Mostly clear, with a low around 49.
Tuesday
Sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Hidden Valley Lake CA
 38.77°N 122.56°W (Elev. 958 ft)
3:04 pm PDT May 19, 2026
8pm PDT May 19, 2026-6pm PDT May 26, 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