Heavy Lake Effect Snow; Subfreezing Temperatures in the Eastern U.S.

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. The Arctic front will continue to bring increasing winds to the Northeast that will remain gusty. Subfreezing overnight low temperatures will be found as far south as the Gulf Coast. Read More >

Current conditions at

MIDDLE PEAK (MDEC1)

Lat: 37.92778°NLon: 122.58722°WElev: 2339.0ft.

NA

53°F

12°C

Humidity 29%
Wind Speed NE 9 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility NA
Last update 29 Dec 09:36 PM PST
Extended Forecast for

San Anselmo CA

Coastal Flood Advisory December 31, 05:00am until January 4, 02:00pm
Dense Fog Advisory December 29, 10:44pm until December 30, 10:00am
Cold Weather Advisory December 30, 01:00am until December 30, 09:00am
Click here for hazard details and duration
Coastal Flood Advisory
Dense Fog Advisory
Cold Weather Advisory
  •  
    Dense Fog Advisory December 29, 10:44pm until December 30, 10:00am

    NOW until 10:00am Tue

    Dense Fog Advisory

  • Tonight

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 50. East northeast wind 7 to 9 mph.

    High: 50 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain after 4am.  Cloudy, with a low around 46. North wind around 7 mph becoming south in the evening.

    Low: 46 °F

    Cloudy then
    Chance Rain

  • Wednesday

    Wednesday: Rain likely, mainly after 10am.  Cloudy, with a high near 50. South southeast wind around 7 mph becoming east in the afternoon.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 50 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain.  Low around 46. East northeast wind around 7 mph.  Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 46 °F

    Rain

  • New Year's Day

    New Year's Day: Rain.  High near 53. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 53 °F

    Rain

  • Thursday Night

    Thursday Night: Rain.  Low around 50. Chance of precipitation is 90%.

    Low: 50 °F

    Rain

  • Friday

    Friday: Rain.  Cloudy, with a high near 56.

    High: 56 °F

    Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 39. Southwest wind around 6 mph.
Tuesday
Partly sunny, with a high near 50. East northeast wind 7 to 9 mph.
Tuesday Night
A 30 percent chance of rain after 4am. Cloudy, with a low around 46. North wind around 7 mph becoming south in the evening.
Wednesday
Rain likely, mainly after 10am. Cloudy, with a high near 50. South southeast wind around 7 mph becoming east in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain. Low around 46. East northeast wind around 7 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
New Year's Day
Rain. High near 53. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain. Low around 50. Chance of precipitation is 90%.
Friday
Rain. Cloudy, with a high near 56.
Friday Night
Rain. Cloudy, with a low around 47.
Saturday
Rain. Mostly cloudy, with a high near 53.
Saturday Night
Rain likely. Mostly cloudy, with a low around 46.
Sunday
Rain likely. Mostly cloudy, with a high near 53.
Sunday Night
Rain likely. Mostly cloudy, with a low around 48.
Monday
Rain likely. Mostly cloudy, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
San Anselmo CA
 37.97°N 122.58°W (Elev. 558 ft)
12:27 pm PST Dec 29, 2025
10pm PST Dec 29, 2025-6pm PST Jan 5, 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