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

San Luis Reservoir (SLRCA)

Lat: 37.06°NLon: 121.07°WElev: 266.0ft.

NA

45°F

7°C

Humidity 99%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Last update 20 Jan 07:57 PM PST
Extended Forecast for

15 Miles NW Los Banos 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

  • Tonight

    Low: 42 °F

    Dense Fog

  • Wednesday

    Wednesday: Areas of dense fog between 10am and noon.  Otherwise, cloudy, with a high near 56. Calm wind.

    High: 56 °F

    Areas Dense
    Fog then
    Cloudy

  • Wednesday Night

    Wednesday Night: Patchy dense fog after 11pm.  Otherwise, cloudy, with a low around 47. Calm wind.

    Low: 47 °F

    Patchy Dense
    Fog

  • Thursday

    Thursday: Patchy dense fog before 11am.  Otherwise, mostly cloudy, with a high near 59. Calm wind.

    High: 59 °F

    Patchy Dense
    Fog then
    Mostly Cloudy

  • Thursday Night

    Thursday Night: Patchy dense fog between 10pm and 2am.  Otherwise, mostly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Patchy Dense
    Fog

  • Friday

    Friday: Mostly sunny, with a high near 58. Calm wind becoming north around 5 mph.

    High: 58 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 43. Northwest wind around 5 mph becoming calm.

    Low: 43 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 57. Calm wind becoming north around 5 mph in the afternoon.

    High: 57 °F

    Mostly Sunny

Detailed Forecast

Tonight
Widespread dense fog between 10pm and 2am. Otherwise, cloudy, with a low around 42. Calm wind.
Wednesday
Areas of dense fog between 10am and noon. Otherwise, cloudy, with a high near 56. Calm wind.
Wednesday Night
Patchy dense fog after 11pm. Otherwise, cloudy, with a low around 47. Calm wind.
Thursday
Patchy dense fog before 11am. Otherwise, mostly cloudy, with a high near 59. Calm wind.
Thursday Night
Patchy dense fog between 10pm and 2am. Otherwise, mostly cloudy, with a low around 44. Calm wind.
Friday
Mostly sunny, with a high near 58. Calm wind becoming north around 5 mph.
Friday Night
Partly cloudy, with a low around 43. Northwest wind around 5 mph becoming calm.
Saturday
Mostly sunny, with a high near 57. Calm wind becoming north around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 40. Calm wind.
Sunday
Partly sunny, with a high near 57. Calm wind.
Sunday Night
Mostly cloudy, with a low around 41. Calm wind.
Monday
Mostly cloudy, with a high near 58. Calm wind becoming east around 5 mph.
Monday Night
Mostly cloudy, with a low around 41. Calm wind.
Tuesday
Partly sunny, with a high near 58. Calm wind becoming east around 5 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles NW Los Banos CA
 37.2°N 121.03°W (Elev. 141 ft)
8:57 pm PST Jan 20, 2026
9pm PST Jan 20, 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