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

Showers and Storms in the East; Dangerously Hot and Dry in the West

Scattered showers and storms are expected across portions of the Central and Eastern U.S. through the end of the week. Meanwhile, dangerous heat will intensify across the Desert Southwest and Intermountain West. Hot, dry weather and increasing winds will allow elevated wildfire conditions to return to the northern Intermountain West, where air quality issues persist from ongoing fires. Read More >

Hazardous Weather Conditions

Current conditions at

Porterville, Porterville Municipal Airport (KPTV)

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

Clear

105°F

41°C

Humidity 17%
Wind Speed NNW 6 MPH
Barometer 29.79 in (1008.81 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 09 Aug 01:56 PM PDT
Extended Forecast for

Porterville CA

Extreme Heat Warning August 9, 02:04pm until August 10, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 9, 02:04pm until August 10, 08:00pm

    NOW until 8:00pm Mon

    Extreme Heat Warning

  • This Afternoon

    High: 106 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 75. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny and hot, with a high near 104. Southeast wind 5 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 15 mph.

    High: 104 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 73. West wind 5 to 10 mph becoming southeast after midnight. Winds could gust as high as 20 mph.

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 101. Southeast wind 5 to 10 mph becoming west in the afternoon.

    High: 101 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 71. West wind 5 to 10 mph becoming south southeast in the evening. Winds could gust as high as 15 mph.

    Low: 71 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 98. South southeast wind 5 to 10 mph becoming west in the afternoon.

    High: 98 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 68. West wind 5 to 10 mph becoming light and variable. Winds could gust as high as 20 mph.

    Low: 68 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 106. West northwest wind around 5 mph.
Tonight
Mostly clear, with a low around 75. Calm wind becoming south southeast around 5 mph after midnight.
Monday
Mostly sunny and hot, with a high near 104. Southeast wind 5 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 15 mph.
Monday Night
Mostly clear, with a low around 73. West wind 5 to 10 mph becoming southeast after midnight. Winds could gust as high as 20 mph.
Tuesday
Sunny and hot, with a high near 101. Southeast wind 5 to 10 mph becoming west in the afternoon.
Tuesday Night
Mostly clear, with a low around 71. West wind 5 to 10 mph becoming south southeast in the evening. Winds could gust as high as 15 mph.
Wednesday
Mostly sunny, with a high near 98. South southeast wind 5 to 10 mph becoming west in the afternoon.
Wednesday Night
Partly cloudy, with a low around 68. West wind 5 to 10 mph becoming light and variable. Winds could gust as high as 20 mph.
Thursday
Mostly sunny, with a high near 94. South southeast wind 5 to 10 mph becoming west in the afternoon.
Thursday Night
Mostly clear, with a low around 64. West wind 10 to 15 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.
Friday
Sunny, with a high near 93. South wind around 5 mph becoming west northwest in the afternoon.
Friday Night
Mostly clear, with a low around 65. West northwest wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 93. Calm wind becoming west northwest around 5 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Porterville CA
 36.06°N 119.04°W (Elev. 495 ft)
Last Update:
1:56 pm PDT Aug 9, 2026
Forecast Valid:
2pm PDT Aug 9, 2026-6pm PDT Aug 15, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation