National Weather Service Forecast for: Porterville CA
Issued by: National Weather Service San Joaquin Valley/Hanford, CA
Updated: 2:13 am PDT Jun 22, 2026
 
Overnight

Overnight: Clear, with a low around 64. South southeast wind around 5 mph becoming calm.
Clear
 Monday

Monday: Sunny, with a high near 95. South southeast wind around 5 mph becoming west northwest in the afternoon.
Sunny
 Monday
Night
Monday Night: Clear, with a low around 66. West northwest wind around 5 mph becoming calm after midnight.
Clear
 Tuesday

Tuesday: Sunny, with a high near 99. South southeast wind around 5 mph becoming west northwest in the afternoon.
Sunny
 Tuesday
Night
Tuesday Night: Clear, with a low around 68. West northwest wind around 5 mph becoming calm after midnight.
Clear
 Wednesday

Wednesday: Sunny and hot, with a high near 100. South southeast wind 5 to 10 mph becoming west northwest in the afternoon.
Hot
 Wednesday
Night
Wednesday Night: Clear, with a low around 67. West northwest wind 5 to 10 mph becoming southeast in the evening.
Clear
 Thursday

Thursday: Sunny and hot, with a high near 100. Southeast wind 5 to 10 mph becoming west northwest in the afternoon.
Hot
 Thursday
Night
Thursday Night: Clear, with a low around 65. West northwest wind 5 to 10 mph becoming south southeast in the evening.
Clear
Lo 64 °F Hi 95 °F Lo 66 °F Hi 99 °F Lo 68 °F Hi 100 °F Lo 67 °F Hi 100 °F Lo 65 °F

 

Overnight
 
 Clear, with a low around 64. South southeast wind around 5 mph becoming calm.
Monday
 
 Sunny, with a high near 95. South southeast wind around 5 mph becoming west northwest in the afternoon.
Monday Night
 
 Clear, with a low around 66. West northwest wind around 5 mph becoming calm after midnight.
Tuesday
 
 Sunny, with a high near 99. South southeast wind around 5 mph becoming west northwest in the afternoon.
Tuesday Night
 
 Clear, with a low around 68. West northwest wind around 5 mph becoming calm after midnight.
Wednesday
 
 Sunny and hot, with a high near 100. South southeast wind 5 to 10 mph becoming west northwest in the afternoon.
Wednesday Night
 
 Clear, with a low around 67. West northwest wind 5 to 10 mph becoming southeast in the evening.
Thursday
 
 Sunny and hot, with a high near 100. Southeast wind 5 to 10 mph becoming west northwest in the afternoon.
Thursday Night
 
 Clear, with a low around 65. West northwest wind 5 to 10 mph becoming south southeast in the evening.
Friday
 
 Sunny, with a high near 95. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Friday Night
 
 Clear, with a low around 63. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday
 
 Sunny, with a high near 91. Southwest wind 5 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 15 mph.
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 90. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon.

 

Forecast from NOAA-NWS for Porterville CA.