



Hot in Parts of the West; Cold Blast Coming to the Central U.S.
Hot to extremely hot temperatures are in place much of this week across parts of California and the interior Northwest U.S. A blast of cold air will drop across the central and eastern U.S. later this week bringing below to well below normal temperatures. Read More >
Hazardous Weather Conditions
Current conditions at
READER RANCH (RRRC1)
Lat: 39.30351°NLon: 121.11725°WElev: 1968.0ft.NA
91°F
33°C
Humidity | 15% |
Wind Speed | W 1 MPH |
Barometer | NA |
Dewpoint | 37°F (3°C) |
Visibility | NA |
Heat Index | 87°F (31°C) |
Last update | 31 Aug 07:13 PM PDT |
Extended Forecast for
Penn Valley CA
Heat Advisory September 1, 12:00pm until September 1, 11:00pm
Tonight
Low: 70 °F
Clear
Labor Day
High: 96 °F
Hot
Monday Night
Low: 71 °F
Mostly Clear
Tuesday
High: 93 °F
Mostly Sunny
Tuesday Night
Low: 68 °F
Mostly Clear
Wednesday
High: 91 °F
Sunny
Wednesday Night
Low: 68 °F
Mostly Clear
Thursday
High: 90 °F
Sunny
Thursday Night
Low: 66 °F
Partly Cloudy
Detailed Forecast
Tonight
Clear, with a low around 70. Light and variable wind.
Labor Day
Sunny and hot, with a high near 96. Calm wind becoming west around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 71. West southwest wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 93. Light and variable wind becoming southwest around 6 mph in the morning.
Tuesday Night
Mostly clear, with a low around 68. South southwest wind around 6 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 91.
Wednesday Night
Mostly clear, with a low around 68.
Thursday
Sunny, with a high near 90.
Thursday Night
Partly cloudy, with a low around 66.
Friday
Mostly sunny, with a high near 87.
Friday Night
Partly cloudy, with a low around 63.
Saturday
Sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Sunny, with a high near 83.
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ABOUT THIS FORECAST
Point Forecast:
Penn Valley CA
39.19°N 121.18°W (Elev. 1670 ft)
39.19°N 121.18°W (Elev. 1670 ft)
5:21 pm PDT Aug 31, 2025
7pm PDT Aug 31, 2025-6pm PDT Sep 7, 2025