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Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Porterville, Porterville Municipal Airport (KPTV)

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

Clear

84°F

29°C

Humidity 45%
Wind Speed N 3 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 17 Aug 09:00 PM PDT
Extended Forecast for

4 Miles W Porterville CA

  • Tonight

    Tonight: Clear, with a low around 59. North northwest wind around 5 mph becoming southwest after midnight.

    Low: 59 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 90. South southwest wind around 5 mph becoming northwest in the afternoon.

    High: 90 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 59. Northwest wind around 5 mph becoming west southwest after midnight.

    Low: 59 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 93. South wind around 5 mph becoming west northwest in the afternoon.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 60. West wind around 5 mph.

    Low: 60 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94. South wind around 5 mph becoming west northwest in the afternoon.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 64. North northwest wind around 5 mph becoming calm after midnight.

    Low: 64 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 99. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 99 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 70. Northwest wind around 5 mph becoming east after midnight.

    Low: 70 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 59. North northwest wind around 5 mph becoming southwest after midnight.
Monday
Sunny, with a high near 90. South southwest wind around 5 mph becoming northwest in the afternoon.
Monday Night
Clear, with a low around 59. Northwest wind around 5 mph becoming west southwest after midnight.
Tuesday
Sunny, with a high near 93. South wind around 5 mph becoming west northwest in the afternoon.
Tuesday Night
Clear, with a low around 60. West wind around 5 mph.
Wednesday
Sunny, with a high near 94. South wind around 5 mph becoming west northwest in the afternoon.
Wednesday Night
Mostly clear, with a low around 64. North northwest wind around 5 mph becoming calm after midnight.
Thursday
Sunny, with a high near 99. Calm wind becoming west northwest around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 70. Northwest wind around 5 mph becoming east after midnight.
Friday
Sunny and hot, with a high near 104. South southeast wind around 5 mph becoming west northwest in the afternoon.
Friday Night
Mostly clear, with a low around 71. Northwest wind around 5 mph becoming south southeast in the evening.
Saturday
Sunny and hot, with a high near 104. South southeast wind around 5 mph becoming west northwest in the afternoon.
Saturday Night
Mostly clear, with a low around 71. West northwest wind around 5 mph becoming south southeast in the evening.
Sunday
Sunny and hot, with a high near 101. South wind around 5 mph becoming west northwest in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Porterville CA
 36.08°N 119.1°W (Elev. 384 ft)
Last Update:
8:57 pm PDT Aug 17, 2025
Forecast Valid:
9pm PDT Aug 17, 2025-6pm PDT Aug 24, 2025
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database Weather Element Forecast

Chance of Precipitation