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

73°F

23°C

Humidity 60%
Wind Speed SSE 3 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 10 Sep 03:20 AM PDT
Extended Forecast for

4 Miles NNW Porterville CA

Heat Advisory September 10, 03:37am until September 10, 10:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 10, 03:37am until September 10, 10:00pm

    NOW until 10:00pm Thu

    Heat Advisory

  • Overnight

    Low: 77 °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 after midnight.

    Low: 72 °F

    Mostly Clear

  • Friday

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

    High: 97 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 66. Northwest wind 5 to 10 mph becoming south southeast after midnight.

    Low: 66 °F

    Clear

  • Saturday

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

    High: 93 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 61. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 61 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 85. West southwest wind around 5 mph.

    High: 85 °F

    Sunny

Detailed Forecast

Overnight
Clear, with a steady temperature around 77. 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 after midnight.
Friday
Sunny, with a high near 97. South southeast wind 5 to 10 mph becoming west northwest in the afternoon.
Friday Night
Clear, with a low around 66. 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.
Saturday Night
Clear, with a low around 61. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 85. West southwest wind around 5 mph.
Sunday Night
Mostly clear, with a low around 59. Northwest wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 88. Calm wind becoming southwest around 5 mph in the morning.
Monday Night
Mostly clear, with a low around 60. West northwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 90. Southeast wind around 5 mph becoming west in the afternoon.
Tuesday Night
Mostly clear, with a low around 60. West northwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 89. South southeast wind around 5 mph becoming west in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Porterville CA
 36.11°N 119.05°W (Elev. 417 ft)
Last Update:
2:56 am PDT Sep 10, 2026
Forecast Valid:
3am PDT Sep 10, 2026-6pm PDT Sep 16, 2026
 
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Additional Resources

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Chance of Precipitation