Cold Temperatures for the Eastern U.S.; Lake Effect Snow in the Great Lakes; Heavy Rain in the Pacific Northwest

Cold temperatures will continue across much of the eastern U.S. into today. Heavy lake effect snow continues into today east of Lakes Erie and Ontario. Two Pacific cold fronts will cross the Pacific Northwest early this week followed by another atmospheric river. Heavy rain and gusty winds are expected through midweek, with the potential for renewed urban and river flooding. Read More >

Current conditions at

MIDDLE PEAK (MDEC1)

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

NA

60°F

16°C

Humidity 22%
Wind Speed WNW 0 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility NA
Last update 15 Dec 06:36 AM PST
Extended Forecast for

Fairfax CA

Dense Fog Advisory December 15, 07:24am until December 15, 11:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory December 15, 07:24am until December 15, 11:00am

    NOW until 11:00am Mon

    Dense Fog Advisory

  • Today

    High: 50 °F

    Patchy Dense
    Fog then
    Partly Sunny

  • Tonight

    Tonight: Patchy dense fog after 4am.  Otherwise, increasing clouds, with a low around 50. West northwest wind 5 to 9 mph becoming calm  after midnight.

    Low: 50 °F

    Mostly Cloudy
    then Patchy
    Dense Fog

  • Tuesday

    Tuesday: Rain likely, mainly after 4pm.  Patchy dense fog before 9am.  Otherwise, cloudy, with a high near 60. West northwest wind 3 to 6 mph.  Chance of precipitation is 60%.

    High: 60 °F

    Chance Rain
    and Patchy
    Dense Fog
    then Rain
    Likely

  • Tuesday Night

    Tuesday Night: Rain.  Low around 55. West southwest wind 5 to 7 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 55 °F

    Rain

  • Wednesday

    Wednesday: Rain likely, mainly before 10am.  Mostly cloudy, with a high near 61. West northwest wind around 6 mph.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Rain Likely
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain, mainly between 10pm and 4am.  Patchy fog after 11pm.  Otherwise, mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance Rain
    and Patchy
    Fog

  • Thursday

    Thursday: A 40 percent chance of rain, mainly after 10am.  Patchy fog before noon.  Otherwise, mostly cloudy, with a high near 59.

    High: 59 °F

    Chance Rain
    and Patchy
    Fog

  • Thursday Night

    Thursday Night: A chance of rain.  Cloudy, with a low around 52.

    Low: 52 °F

    Chance Rain

Detailed Forecast

Today
Patchy dense fog before 10am. Otherwise, partly sunny, with a high near 50. Calm wind.
Tonight
Patchy dense fog after 4am. Otherwise, increasing clouds, with a low around 50. West northwest wind 5 to 9 mph becoming calm after midnight.
Tuesday
Rain likely, mainly after 4pm. Patchy dense fog before 9am. Otherwise, cloudy, with a high near 60. West northwest wind 3 to 6 mph. Chance of precipitation is 60%.
Tuesday Night
Rain. Low around 55. West southwest wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain likely, mainly before 10am. Mostly cloudy, with a high near 61. West northwest wind around 6 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A 30 percent chance of rain, mainly between 10pm and 4am. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 49.
Thursday
A 40 percent chance of rain, mainly after 10am. Patchy fog before noon. Otherwise, mostly cloudy, with a high near 59.
Thursday Night
A chance of rain. Cloudy, with a low around 52.
Friday
Rain. Cloudy, with a high near 58.
Friday Night
Rain, mainly before 4am. Cloudy, with a low around 51.
Saturday
Rain likely. Mostly cloudy, with a high near 58.
Saturday Night
Rain likely. Mostly cloudy, with a low around 48.
Sunday
Rain likely. Cloudy, with a high near 56.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Fairfax CA
 37.99°N 122.58°W (Elev. 276 ft)
2:09 am PST Dec 15, 2025
7am PST Dec 15, 2025-6pm PST Dec 21, 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