National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heat Persists in the South Central U.S. and California; Heavy Rain in the Ohio Valley

Sweltering heat remains across the South-Central Plains and Lower/Middle Mississippi Valley, as well as in the Southwest and California this week with limited nighttime relief. Heavy rainfall will lead to localized areas of flash flooding in parts of the Ohio Valley/Central Appalachians. Dry and breezy conditions will enhance fire weather concerns across the northern Rockies and High Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Porterville, Porterville Municipal Airport (KPTV)

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

Clear

84°F

29°C

Humidity 51%
Wind Speed SE 4 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 09 Sep 09:35 PM PDT
Extended Forecast for

2 Miles SSE Porterville CA

Heat Advisory September 9, 09:49pm until September 10, 10:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 9, 09:49pm until September 10, 10:00pm

    NOW until 10:00pm Thu

    Heat Advisory

  • Tonight

    Low: 73 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 101. South southeast wind 5 to 10 mph becoming northwest in the afternoon.

    High: 101 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 72. Northwest wind around 5 mph becoming south southeast after midnight.

    Low: 72 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 98. South southeast wind 5 to 10 mph becoming west northwest in the afternoon.

    High: 98 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 67. Northwest wind 5 to 10 mph becoming south southeast after midnight.

    Low: 67 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 93. South southeast wind 5 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 15 mph.

    High: 93 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 60. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 60 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 86. West northwest wind around 5 mph.

    High: 86 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 73. Calm wind becoming south southeast around 5 mph.
Thursday
Sunny and hot, with a high near 101. South southeast wind 5 to 10 mph becoming northwest in the afternoon.
Thursday Night
Mostly clear, with a low around 72. Northwest wind around 5 mph becoming south southeast after midnight.
Friday
Sunny, with a high near 98. South southeast wind 5 to 10 mph becoming west northwest in the afternoon.
Friday Night
Mostly clear, with a low around 67. Northwest wind 5 to 10 mph becoming south southeast after midnight.
Saturday
Sunny, with a high near 93. South southeast wind 5 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 15 mph.
Saturday Night
Clear, with a low around 60. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday
Sunny, with a high near 86. West northwest wind around 5 mph.
Sunday Night
Mostly clear, with a low around 59. Northwest wind around 5 mph becoming east southeast after midnight.
Monday
Sunny, with a high near 88. Southeast wind around 5 mph becoming west in the afternoon.
Monday Night
Clear, with a low around 59. West northwest wind around 5 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 89. Southeast wind around 5 mph becoming west in the afternoon.
Tuesday Night
Mostly clear, with a low around 58. West northwest wind around 5 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 87. South southeast wind around 5 mph becoming west northwest in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Porterville CA
 36.04°N 119.01°W (Elev. 482 ft)
Last Update:
8:56 pm PDT Sep 9, 2026
Forecast Valid:
9pm PDT Sep 9, 2026-6pm PDT Sep 16, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation