Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain Returns to California

Lake effect snow will continue through Friday bringing significant snowfall to areas east to southeast of the Great Lakes. Snow squalls may impact New Year's Eve travel this evening and overnight across parts of the Great Lakes, Ohio Valley, Mid-Atlantic, and Upstate New York. Heavy rain will bring another flash flooding threat for southern California New Year's Eve into New Year's Day. Read More >

Current conditions at

Nevada County Air Park (KGOO)

Lat: 39.224028°NLon: 121.003083°WElev: 3154.0ft.

Overcast

59°F

15°C

Humidity 18%
Wind Speed N 0 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 31 Dec 08:15 AM PST
Extended Forecast for

Grass Valley CA

  • Today

    Today: A 40 percent chance of rain, mainly after 2pm.  Cloudy, with a high near 56. Calm wind.  New precipitation amounts of less than a tenth of an inch possible.

    High: 56 °F

    Cloudy then
    Chance Rain

  • Tonight

    Tonight: Rain, mainly after 7pm.  Patchy fog before 9pm, then patchy fog after midnight. Steady temperature around 48. Calm wind.  Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 48 °F

    Rain and
    Patchy Fog

  • New Year's Day

    New Year's Day: Rain.  High near 52. Calm wind becoming south around 6 mph in the morning.  Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    High: 52 °F

    Rain

  • Thursday Night

    Thursday Night: Rain.  Low around 46. South southeast wind around 6 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 46 °F

    Rain

  • Friday

    Friday: Rain.  High near 53. South wind 6 to 9 mph, with gusts as high as 18 mph.  Chance of precipitation is 80%.

    High: 53 °F

    Rain

  • Friday Night

    Friday Night: Rain. The rain could be heavy at times.  Low around 43. Chance of precipitation is 90%.

    Low: 43 °F

    Heavy Rain

  • Saturday

    Saturday: Rain before 10am, then showers and possibly a thunderstorm after 10am. Some of the storms could produce heavy rainfall.  High near 48. Chance of precipitation is 100%.

    High: 48 °F

    Heavy Rain

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 10pm, then rain after 10pm.  Cloudy, with a low around 42.

    Low: 42 °F

    Showers

  • Sunday

    Sunday: Rain before 4pm, then showers and possibly a thunderstorm after 4pm.  Cloudy, with a high near 47.

    High: 47 °F

    Showers

Detailed Forecast

Today
A 40 percent chance of rain, mainly after 2pm. Cloudy, with a high near 56. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain, mainly after 7pm. Patchy fog before 9pm, then patchy fog after midnight. Steady temperature around 48. Calm wind. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
New Year's Day
Rain. High near 52. Calm wind becoming south around 6 mph in the morning. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Thursday Night
Rain. Low around 46. South southeast wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain. High near 53. South wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 80%.
Friday Night
Rain. The rain could be heavy at times. Low around 43. Chance of precipitation is 90%.
Saturday
Rain before 10am, then showers and possibly a thunderstorm after 10am. Some of the storms could produce heavy rainfall. High near 48. Chance of precipitation is 100%.
Saturday Night
Showers and possibly a thunderstorm before 10pm, then rain after 10pm. Cloudy, with a low around 42.
Sunday
Rain before 4pm, then showers and possibly a thunderstorm after 4pm. Cloudy, with a high near 47.
Sunday Night
Showers and possibly a thunderstorm before 10pm, then rain after 10pm. Cloudy, with a low around 40.
Monday
Rain likely. Mostly cloudy, with a high near 48.
Monday Night
Rain likely. Mostly cloudy, with a low around 38.
Tuesday
A chance of rain. Partly sunny, with a high near 52.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Grass Valley CA
 39.23°N 121.08°W (Elev. 2598 ft)
1:21 am PST Dec 31, 2025
8am PST Dec 31, 2025-6pm PST Jan 6, 2026
 
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