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

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

PIERCE (PIEC1)

Lat: 40.24611°NLon: 120.64222°WElev: 5811.0ft.

NA

50°F

10°C

Humidity 70%
Wind Speed W 8 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Wind Chill47°F (8°C)
Last update 12 Nov 07:15 PM PST
Extended Forecast for

Janesville CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. West wind 5 to 10 mph becoming southeast in the evening.

    Low: 43 °F

    Mostly Cloudy

  • Thursday

    Thursday: Rain, mainly after 10am. High near 57. Southeast wind 10 to 15 mph. Chance of precipitation is 80%.

    High: 57 °F

    Rain

  • Thursday Night

    Thursday Night: Rain, mainly before 10pm. Low around 37. South wind 5 to 10 mph becoming northwest in the evening. Chance of precipitation is 80%.

    Low: 37 °F

    Rain then
    Chance Rain

  • Friday

    Friday: A 20 percent chance of rain before 10am. Snow level 7300 feet. Mostly sunny, with a high near 54. Calm wind becoming south around 5 mph.

    High: 54 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 34. Calm wind.

    Low: 34 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 56. Calm wind becoming east around 5 mph.

    High: 56 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: A chance of rain. Partly sunny, with a high near 52.

    High: 52 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Rain likely before 1am, then rain and snow likely. Snow level 7000 feet lowering to 6300 feet after midnight . Mostly cloudy, with a low around 35.

    Low: 35 °F

    Rain Likely
    then
    Rain/Snow
    Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 43. West wind 5 to 10 mph becoming southeast in the evening.
Thursday
Rain, mainly after 10am. High near 57. Southeast wind 10 to 15 mph. Chance of precipitation is 80%.
Thursday Night
Rain, mainly before 10pm. Low around 37. South wind 5 to 10 mph becoming northwest in the evening. Chance of precipitation is 80%.
Friday
A 20 percent chance of rain before 10am. Snow level 7300 feet. Mostly sunny, with a high near 54. Calm wind becoming south around 5 mph.
Friday Night
Partly cloudy, with a low around 34. Calm wind.
Saturday
Mostly sunny, with a high near 56. Calm wind becoming east around 5 mph.
Saturday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 37.
Sunday
A chance of rain. Partly sunny, with a high near 52.
Sunday Night
Rain likely before 1am, then rain and snow likely. Snow level 7000 feet lowering to 6300 feet after midnight . Mostly cloudy, with a low around 35.
Monday
A chance of rain and snow. Snow level 5500 feet. Partly sunny, with a high near 44.
Monday Night
Partly cloudy, with a low around 28.
Tuesday
Mostly sunny, with a high near 43.
Tuesday Night
Partly cloudy, with a low around 27.
Wednesday
Partly sunny, with a high near 44.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Janesville CA
 40.3°N 120.53°W (Elev. 4370 ft)
Last Update:
1:23 pm PST Nov 12, 2025
Forecast Valid:
7pm PST Nov 12, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation