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 Joaquin Ridge (PG684)

Lat: 36.30162°NLon: 120.40109°WElev: 3563.0ft.

NA

59°F

15°C

Humidity 24%
Wind Speed WSW 16 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility NA
Last update 21 Jan 02:20 AM PST
Extended Forecast for

15 Miles SW San Joaquin CA

Dense Fog Advisory January 21, 02:37am until January 21, 12:00pm
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory January 21, 02:37am until January 21, 12:00pm

    NOW until 12:00pm Wed

    Dense Fog Advisory

  • Overnight

    Low: 37 °F

    Cloudy

  • Wednesday

    Wednesday: Areas of dense fog between 10am and noon.  Otherwise, cloudy, with a high near 56. Calm wind becoming east northeast around 5 mph.

    High: 56 °F

    Areas Dense
    Fog then
    Cloudy

  • Wednesday Night

    Wednesday Night: Patchy dense fog after 4am.  Otherwise, cloudy, with a low around 47. Calm wind becoming northwest around 5 mph.

    Low: 47 °F

    Cloudy then
    Patchy Dense
    Fog

  • Thursday

    Thursday: Patchy dense fog before 9am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 60. North wind around 5 mph.

    High: 60 °F

    Patchy Dense
    Fog then
    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44. West wind around 5 mph.

    Low: 44 °F

    Partly Cloudy

  • Friday

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

    High: 58 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 43. West northwest wind around 5 mph.

    Low: 43 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 57. North wind around 5 mph.

    High: 57 °F

    Mostly Sunny

Detailed Forecast

Overnight
Cloudy, with a low around 37. Calm wind.
Wednesday
Areas of dense fog between 10am and noon. Otherwise, cloudy, with a high near 56. Calm wind becoming east northeast around 5 mph.
Wednesday Night
Patchy dense fog after 4am. Otherwise, cloudy, with a low around 47. Calm wind becoming northwest around 5 mph.
Thursday
Patchy dense fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 60. North wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 44. West wind around 5 mph.
Friday
Mostly sunny, with a high near 58. Calm wind becoming northeast around 5 mph.
Friday Night
Partly cloudy, with a low around 43. West northwest wind around 5 mph.
Saturday
Mostly sunny, with a high near 57. North wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 41. Northwest wind around 5 mph becoming west southwest after midnight.
Sunday
Partly sunny, with a high near 59. Calm wind becoming east southeast around 5 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 42. South southwest wind around 5 mph becoming calm.
Monday
Partly sunny, with a high near 59. Calm wind becoming east around 5 mph.
Monday Night
Partly cloudy, with a low around 40. Calm wind.
Tuesday
Partly sunny, with a high near 60. Calm wind becoming east around 5 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles SW San Joaquin CA
 36.47°N 120.41°W (Elev. 486 ft)
1:57 am PST Jan 21, 2026
2am 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