Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

GREEN SPRING (GNSC1)

Lat: 37.83418°NLon: 120.50311°WElev: 1108.0ft.

NA

42°F

6°C

Humidity 100%
Wind Speed SE 3 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Last update 21 Jan 04:03 AM PST
Extended Forecast for

14 Miles SW Groveland CA

Dense Fog Advisory until January 21, 12:00pm
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until January 21, 12:00pm

    NOW until 12:00pm Wed

    Dense Fog Advisory

  • Overnight

    Low: 49 °F

    Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 58. Light and variable wind.

    High: 58 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Widespread dense fog, mainly after 1am.  Otherwise, cloudy, with a low around 47. Calm wind.

    Low: 47 °F

    Dense Fog

  • Thursday

    Thursday: Mostly cloudy, with a high near 57. Calm wind becoming west around 5 mph in the afternoon.

    High: 57 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

Detailed Forecast

Overnight
Cloudy, with a steady temperature around 49. Light east wind.
Wednesday
Mostly cloudy, with a high near 58. Light and variable wind.
Wednesday Night
Widespread dense fog, mainly after 1am. Otherwise, cloudy, with a low around 47. Calm wind.
Thursday
Mostly cloudy, with a high near 57. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 44. Calm wind.
Friday
Mostly sunny, with a high near 55.
Friday Night
Partly cloudy, with a low around 42.
Saturday
Sunny, with a high near 55.
Saturday Night
Mostly clear, with a low around 40.
Sunday
Partly sunny, with a high near 56.
Sunday Night
Mostly cloudy, with a low around 42.
Monday
Partly sunny, with a high near 57.
Monday Night
Partly cloudy, with a low around 42.
Tuesday
Partly sunny, with a high near 58.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
14 Miles SW Groveland CA
 37.66°N 120.35°W (Elev. 1201 ft)
1:21 am PST Jan 21, 2026
5am PST Jan 21, 2026-6pm PST Jan 27, 2026
 
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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