Tracking Atmospheric River for the West Coast; Space Weather Storming Continues

An atmospheric river will bring threats of gusty to high winds and heavy rainfall to California mainly Thursday into Saturday which may bring areas of flooding and wind damage. Heavy snow will be possible over the Sierra Nevada mountains Thursday into Friday associated with the atmospheric river. Minor to severe geomagnetic storming (space weather) is expected to continue into early Thursday. Read More >

Current conditions at

READER RANCH (RRRC1)

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

NA

57°F

14°C

Humidity 77%
Wind Speed NE 3 MPH
Barometer NA
Dewpoint 50°F (10°C)
Visibility NA
Last update 13 Nov 02:13 AM PST
Extended Forecast for

3 Miles NNW Penn Valley CA

  • Overnight

    Overnight: A 30 percent chance of showers, mainly after 5am.  Mostly cloudy, with a steady temperature around 59. South southeast wind around 11 mph, with gusts as high as 26 mph.  New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 59 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers. The rain could be heavy at times.  Patchy fog before 1pm, then patchy fog after 2pm. High near 61. South wind 9 to 14 mph, with gusts as high as 29 mph.  Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 61 °F

    Heavy Rain
    and Patchy
    Fog

  • Thursday Night

    Thursday Night: Showers, mainly before 2am. The rain could be heavy at times.  Low around 49. South southeast wind 5 to 7 mph becoming calm  in the evening.  Chance of precipitation is 80%. New precipitation amounts between 1 and 2 inches possible.

    Low: 49 °F

    Heavy Rain

  • Friday

    Friday: A 40 percent chance of showers, mainly before 10am.  Mostly cloudy, then gradually becoming sunny, with a high near 60. Calm wind becoming west northwest around 5 mph in the afternoon.  New precipitation amounts between a tenth and quarter of an inch possible.

    High: 60 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers after 10am.  Mostly sunny, with a high near 65.

    High: 65 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A 40 percent chance of showers.  Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers.  Mostly cloudy, with a high near 54.

    High: 54 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely.  Mostly cloudy, with a low around 48.

    Low: 48 °F

    Showers
    Likely

Detailed Forecast

Overnight
A 30 percent chance of showers, mainly after 5am. Mostly cloudy, with a steady temperature around 59. South southeast wind around 11 mph, with gusts as high as 26 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Showers. The rain could be heavy at times. Patchy fog before 1pm, then patchy fog after 2pm. High near 61. South wind 9 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Thursday Night
Showers, mainly before 2am. The rain could be heavy at times. Low around 49. South southeast wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 80%. New precipitation amounts between 1 and 2 inches possible.
Friday
A 40 percent chance of showers, mainly before 10am. Mostly cloudy, then gradually becoming sunny, with a high near 60. Calm wind becoming west northwest around 5 mph in the afternoon. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Partly cloudy, with a low around 48. Calm wind.
Saturday
A 20 percent chance of showers after 10am. Mostly sunny, with a high near 65.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 50.
Sunday
A chance of showers. Mostly cloudy, with a high near 54.
Sunday Night
Showers likely. Mostly cloudy, with a low around 48.
Monday
Showers likely, mainly before 10am. Mostly cloudy, with a high near 53.
Monday Night
A chance of showers. Partly cloudy, with a low around 42.
Tuesday
Mostly sunny, with a high near 55.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
A chance of showers. Mostly sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Penn Valley CA
 39.23°N 121.19°W (Elev. 1398 ft)
1:21 am PST Nov 13, 2025
2am PST Nov 13, 2025-6pm PST Nov 19, 2025
 
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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