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

UC MERCED WX STATION (UCMC1)

Lat: 37.36611°NLon: 120.4225°WElev: 252.0ft.

NA

44°F

7°C

Humidity 100%
Wind Speed SSW 0 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Last update 21 Jan 04:15 AM PST
Extended Forecast for

5 Miles NNE Merced CA

Dense Fog Advisory January 21, 05:01am until January 21, 12:00pm
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory January 21, 05:01am until January 21, 12:00pm

    NOW until 12:00pm Wed

    Dense Fog Advisory

  • Today

    High: 56 °F

    Areas Dense
    Fog then
    Cloudy

  • Tonight

    Tonight: Patchy dense fog.  Otherwise, cloudy, with a low around 45. Calm wind.

    Low: 45 °F

    Patchy Dense
    Fog

  • Thursday

    Thursday: Patchy fog before noon.  Otherwise, mostly cloudy, with a high near 58. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 58 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Patchy fog before 2am.  Otherwise, partly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Patchy Fog

  • Friday

    Friday: Partly sunny, with a high near 57. Calm wind becoming west around 5 mph.

    High: 57 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 42. North northwest wind around 5 mph becoming calm.

    Low: 42 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 56. West northwest wind around 5 mph.

    High: 56 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 38. North northwest wind around 5 mph becoming calm.

    Low: 38 °F

    Partly Cloudy

Detailed Forecast

Today
Areas of dense fog between 10am and noon. Otherwise, cloudy, with a high near 56. Calm wind.
Tonight
Patchy dense fog. Otherwise, cloudy, with a low around 45. Calm wind.
Thursday
Patchy fog before noon. Otherwise, mostly cloudy, with a high near 58. Calm wind becoming northwest around 5 mph in the afternoon.
Thursday Night
Patchy fog before 2am. Otherwise, partly cloudy, with a low around 43. Calm wind.
Friday
Partly sunny, with a high near 57. Calm wind becoming west around 5 mph.
Friday Night
Partly cloudy, with a low around 42. North northwest wind around 5 mph becoming calm.
Saturday
Partly sunny, with a high near 56. West northwest wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 38. North northwest wind around 5 mph becoming calm.
Sunday
Partly sunny, with a high near 57. Calm wind becoming south around 5 mph.
Sunday Night
Mostly cloudy, with a low around 40. Calm wind.
Monday
Partly sunny, with a high near 58. Calm wind.
Monday Night
Partly cloudy, with a low around 39. Calm wind.
Tuesday
Mostly cloudy, with a high near 58. Calm wind becoming west southwest around 5 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNE Merced CA
 37.35°N 120.44°W (Elev. 200 ft)
4:57 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