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

Severe Weather Across the Center of the Nation; Fire Weather Concerns for Southwest and California; Snow for the Central Rockies

Severe thunderstorms will continue to impact the center of the Nation through today. Very large hail, strong tornadoes, and damaging winds are expected from the Great Lakes into the central/southern Plains; Flash flooding is possible for portions into the mid-Mississippi Valley. Critical fire weather conditions for the Southwest and central valley of California today. Winter hangs on for Rockies. Read More >

Hazardous Weather Conditions

Current conditions at

Porterville, Porterville Municipal Airport (KPTV)

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

Clear

82°F

28°C

Humidity 17%
Wind Speed NW 11 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 18 May 04:50 PM PDT
Extended Forecast for

3 Miles NW Porterville CA

Red Flag Warning May 18, 05:02pm until May 18, 08:00pm
Click here for hazard details and duration
...
  •  
    Red Flag Warning May 18, 05:02pm until May 18, 08:00pm

    NOW until 8:00pm Mon

    Red Flag Warning

  • Tonight

    Low: 55 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89. East southeast wind 5 to 10 mph becoming west northwest in the afternoon.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 57. North northwest wind around 5 mph becoming east southeast after midnight.

    Low: 57 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 91. East southeast wind around 5 mph becoming west in the afternoon.

    High: 91 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. Northwest wind around 5 mph becoming southeast after midnight.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 94. East southeast wind around 5 mph becoming west northwest in the afternoon.

    High: 94 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 61. Northwest wind around 5 mph becoming southeast in the evening.

    Low: 61 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 94. Southeast wind around 5 mph becoming west in the afternoon.

    High: 94 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 55. North northwest wind around 5 mph becoming south southeast after midnight.
Tuesday
Sunny, with a high near 89. East southeast wind 5 to 10 mph becoming west northwest in the afternoon.
Tuesday Night
Clear, with a low around 57. North northwest wind around 5 mph becoming east southeast after midnight.
Wednesday
Sunny, with a high near 91. East southeast wind around 5 mph becoming west in the afternoon.
Wednesday Night
Mostly clear, with a low around 59. Northwest wind around 5 mph becoming southeast after midnight.
Thursday
Sunny, with a high near 94. East southeast wind around 5 mph becoming west northwest in the afternoon.
Thursday Night
Clear, with a low around 61. Northwest wind around 5 mph becoming southeast in the evening.
Friday
Sunny, with a high near 94. Southeast wind around 5 mph becoming west in the afternoon.
Friday Night
Mostly clear, with a low around 60. Northwest wind 5 to 10 mph becoming south southeast in the evening.
Saturday
Sunny, with a high near 93. Southeast wind around 5 mph becoming west northwest in the afternoon.
Saturday Night
Clear, with a low around 59. West northwest wind 5 to 10 mph becoming south southeast in the evening.
Sunday
Sunny, with a high near 91. South southeast wind around 5 mph becoming west northwest in the afternoon.
Sunday Night
Mostly clear, with a low around 59. Northwest wind 5 to 10 mph becoming south southeast in the evening.
Memorial Day
Sunny, with a high near 90. South wind 5 to 10 mph becoming northwest in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Porterville CA
 36.11°N 119.05°W (Elev. 417 ft)
Last Update:
4:56 pm PDT May 18, 2026
Forecast Valid:
5pm PDT May 18, 2026-6pm PDT May 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation