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

Storm Impacting the Southwest U.S.; Above Normal Temperatures Further East

A storm system will shift across the southwest U.S. through Thursday with widespread showers and isolated thunderstorms. Isolated flooding is possible. High-elevation snow is also expected in parts of Nevada and the southern Sierra Nevada range. East of this storm, above average temperatures will challenge or break daily record high temperatures this week in the southern Plains and southeast U.S. Read More >

Current conditions at

READER RANCH (RRRC1)

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

NA

56°F

13°C

Humidity 67%
Wind Speed WSW 5 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 18 Nov 12:13 PM PST
Extended Forecast for

Penn Valley CA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 53. South southwest wind 3 to 5 mph.

    High: 53 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 44. Calm wind.

    Low: 44 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, with a high near 52. Light and variable wind.

    High: 52 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 4am. Mostly cloudy, with a low around 46. Calm wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 46 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely, mainly before 10am. Mostly cloudy, with a high near 49. Light south southeast wind. Chance of precipitation is 70%.

    High: 49 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 10pm. Partly cloudy, with a low around 41.

    Low: 41 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 53. South southwest wind 3 to 5 mph.
Tonight
Increasing clouds, with a low around 44. Calm wind.
Wednesday
Partly sunny, with a high near 52. Light and variable wind.
Wednesday Night
Showers likely, mainly after 4am. Mostly cloudy, with a low around 46. Calm wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Showers likely, mainly before 10am. Mostly cloudy, with a high near 49. Light south southeast wind. Chance of precipitation is 70%.
Thursday Night
A 20 percent chance of showers before 10pm. Partly cloudy, with a low around 41.
Friday
Sunny, with a high near 59.
Friday Night
Mostly clear, with a low around 42.
Saturday
Sunny, with a high near 58.
Saturday Night
Mostly clear, with a low around 42.
Sunday
Mostly sunny, with a high near 58.
Sunday Night
Partly cloudy, with a low around 43.
Monday
A slight chance of showers. Partly sunny, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Penn Valley CA
 39.19°N 121.18°W (Elev. 1670 ft)
Last Update:
1:21 am PST Nov 18, 2025
Forecast Valid:
12pm PST Nov 18, 2025-6pm PST Nov 24, 2025
 
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