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

Porterville, Porterville Municipal Airport (KPTV)

Lat: 36.03333°NLon: 119.06667°WElev: 443.0ft.

Mist

48°F

9°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 48°F (9°C)
Visibility 0.75 mi
Last update 21 Jan 12:35 AM PST
Extended Forecast for

2 Miles S Porterville CA

Dense Fog Advisory January 21, 12:47am until January 21, 12:00pm
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory January 21, 12:47am until January 21, 12:00pm

    NOW until 12:00pm Wed

    Dense Fog Advisory

  • Overnight

    Low: 43 °F

    Patchy Dense
    Fog

  • Wednesday

    Wednesday: Areas of dense fog between 10am and 11am.  Otherwise, cloudy, with a high near 60. Calm wind.

    High: 60 °F

    Areas Dense
    Fog then
    Cloudy

  • Wednesday Night

    Wednesday Night: Patchy dense fog after 9pm.  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 60. Calm wind becoming west around 5 mph.

    High: 60 °F

    Patchy Dense
    Fog then
    Mostly Cloudy

  • Thursday Night

    Thursday Night: Patchy fog before 2am.  Otherwise, mostly cloudy, with a low around 45. Calm wind.

    Low: 45 °F

    Patchy Fog

  • Friday

    Friday: Mostly sunny, with a high near 60. Calm wind becoming west around 5 mph.

    High: 60 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 57. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 57 °F

    Partly Sunny

Detailed Forecast

Overnight
Patchy dense fog before 2am. Otherwise, mostly cloudy, with a low around 43. Calm wind.
Wednesday
Areas of dense fog between 10am and 11am. Otherwise, cloudy, with a high near 60. Calm wind.
Wednesday Night
Patchy dense fog after 9pm. Otherwise, cloudy, with a low around 47. Calm wind.
Thursday
Patchy dense fog before 11am. Otherwise, mostly cloudy, with a high near 60. Calm wind becoming west around 5 mph.
Thursday Night
Patchy fog before 2am. Otherwise, mostly cloudy, with a low around 45. Calm wind.
Friday
Mostly sunny, with a high near 60. Calm wind becoming west around 5 mph.
Friday Night
Partly cloudy, with a low around 44. Calm wind.
Saturday
Partly sunny, with a high near 57. Calm wind becoming west northwest around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 41. North wind around 5 mph becoming east in the evening.
Sunday
Partly sunny, with a high near 59. East wind around 5 mph becoming calm.
Sunday Night
Mostly cloudy, with a low around 41. East wind around 5 mph.
Monday
Partly sunny, with a high near 59. Calm wind.
Monday Night
Partly cloudy, with a low around 40. East wind around 5 mph.
Tuesday
Partly sunny, with a high near 60. Calm wind becoming west northwest around 5 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Porterville CA
 36.04°N 119.04°W (Elev. 479 ft)
11:57 pm PST Jan 20, 2026
12am 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