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

Heat Persists in the South Central U.S. and Southwest; Heavy rains in the Desert Southwest and Central Plains

Sweltering heat remains across the South-Central Plains, Lower/Middle Mississippi Valley, and the Southwest this week with limited nighttime relief. Thunderstorms will bring heavy rainfall leading to localized flash flooding in portions of the Desert Southwest and central Plains. Isolated strong to severe thunderstorms are possible across portions of the central Plains into the Northeast. Read More >

Hazardous Weather Conditions

Current conditions at

Porterville, Porterville Municipal Airport (KPTV)

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

Clear

85°F

29°C

Humidity 44%
Wind Speed ESE 4 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 08 Sep 08:56 PM PDT
Extended Forecast for

6 Miles SSE Porterville CA

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

  • Tonight

    Tonight: Partly cloudy, with a low around 72. Calm wind becoming southeast around 5 mph.

    Low: 72 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 99. South wind around 5 mph becoming northwest in the afternoon.

    High: 99 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 73. Northwest wind around 5 mph becoming calm.

    Low: 73 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 100. South southeast wind around 5 mph becoming west northwest in the afternoon.

    High: 100 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 73. Northwest wind 5 to 10 mph becoming south southeast after midnight.

    Low: 73 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 97. South southeast wind 5 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 15 mph.

    High: 97 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 67. Northwest wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 15 mph.

    Low: 67 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 92. South southeast wind 5 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 15 mph.

    High: 92 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 62. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 62 °F

    Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 72. Calm wind becoming southeast around 5 mph.
Wednesday
Sunny, with a high near 99. South wind around 5 mph becoming northwest in the afternoon.
Wednesday Night
Mostly clear, with a low around 73. Northwest wind around 5 mph becoming calm.
Thursday
Sunny and hot, with a high near 100. South southeast wind around 5 mph becoming west northwest in the afternoon.
Thursday Night
Mostly clear, with a low around 73. Northwest wind 5 to 10 mph becoming south southeast after midnight.
Friday
Sunny, with a high near 97. South southeast wind 5 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 15 mph.
Friday Night
Mostly clear, with a low around 67. Northwest wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 15 mph.
Saturday
Sunny, with a high near 92. 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 62. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday
Sunny, with a high near 86. South wind around 5 mph becoming west northwest in the afternoon.
Sunday Night
Mostly clear, with a low around 60. Northwest wind 5 to 10 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
Mostly clear, with a low around 61. West northwest wind around 5 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 89. 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:
6 Miles SSE Porterville CA
 35.98°N 118.99°W (Elev. 525 ft)
Last Update:
8:56 pm PDT Sep 8, 2026
Forecast Valid:
9pm PDT Sep 8, 2026-6pm PDT Sep 15, 2026
 
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Additional Resources

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Chance of Precipitation