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

73°F

23°C

Humidity 56%
Wind Speed N 0 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 09 Sep 04:00 AM PDT
Extended Forecast for

2 Miles E Porterville CA

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

  • Today

    Today: Sunny and hot, with a high near 100. Calm wind becoming south southwest around 5 mph in the morning.

    High: 100 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 73. Calm wind becoming north around 5 mph.

    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 71. Northwest wind 5 to 10 mph becoming east southeast after midnight.

    Low: 71 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 97. Light and variable wind becoming west northwest 5 to 10 mph 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 66. West northwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 15 mph.

    Low: 66 °F

    Mostly Clear

  • Saturday

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

    High: 92 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 60. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 60 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 84. Calm wind becoming west around 5 mph in the afternoon.

    High: 84 °F

    Sunny

Detailed Forecast

Today
Sunny and hot, with a high near 100. Calm wind becoming south southwest around 5 mph in the morning.
Tonight
Mostly clear, with a low around 73. Calm wind becoming north around 5 mph.
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 71. Northwest wind 5 to 10 mph becoming east southeast after midnight.
Friday
Sunny, with a high near 97. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Friday Night
Mostly clear, with a low around 66. West northwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 15 mph.
Saturday
Sunny, with a high near 92. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Saturday Night
Mostly clear, with a low around 60. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 84. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
Clear, with a low around 57. Northwest wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 88. Calm wind becoming west southwest around 5 mph in the afternoon.
Monday Night
Clear, with a low around 59. West northwest wind around 5 mph becoming east southeast after midnight.
Tuesday
Sunny, with a high near 90. East southeast wind around 5 mph becoming west in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Porterville CA
 36.07°N 118.99°W (Elev. 518 ft)
Last Update:
3:56 am PDT Sep 9, 2026
Forecast Valid:
4am PDT Sep 9, 2026-6pm PDT Sep 15, 2026
 
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Additional Resources

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Chance of Precipitation