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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

READER RANCH (RRRC1)

Lat: 39.30351°NLon: 121.11725°WElev: 1968.0ft.

NA

92°F

33°C

Humidity 17%
Wind Speed SW 4 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Heat Index88°F (31°C)
Last update 27 Aug 05:13 PM PDT
Extended Forecast for

6 Miles W Penn Valley CA

  • Tonight

    Tonight: A 20 percent chance of rain before 11pm. Increasing clouds, with a low around 73. South wind 5 to 7 mph becoming calm in the evening.

    Low: 73 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of rain before 11am. Mostly cloudy, with a high near 89. South wind 5 to 9 mph, with gusts as high as 20 mph.

    High: 89 °F

    Chance Rain
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Mostly cloudy during the early evening, then gradual clearing, with a low around 65. South wind 5 to 8 mph becoming calm in the evening.

    Low: 65 °F

    Gradual
    Clearing

  • Saturday

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

    High: 91 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 60. South wind 5 to 8 mph becoming calm in the evening.

    Low: 60 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 61.

    Low: 61 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of rain before 11pm. Increasing clouds, with a low around 73. South wind 5 to 7 mph becoming calm in the evening.
Friday
A 30 percent chance of rain before 11am. Mostly cloudy, with a high near 89. South wind 5 to 9 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy during the early evening, then gradual clearing, with a low around 65. South wind 5 to 8 mph becoming calm in the evening.
Saturday
Sunny, with a high near 91. Calm wind becoming south southwest 5 to 8 mph in the afternoon.
Saturday Night
Clear, with a low around 60. South wind 5 to 8 mph becoming calm in the evening.
Sunday
Sunny, with a high near 90.
Sunday Night
Clear, with a low around 61.
Monday
Sunny, with a high near 86.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Sunny, with a high near 82.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 84.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
A slight chance of rain. Sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles W Penn Valley CA
 39.21°N 121.3°W (Elev. 509 ft)
Last Update:
2:00 pm PDT Aug 27, 2026
Forecast Valid:
6pm PDT Aug 27, 2026-6pm PDT Sep 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation