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City of Porterville, CaliforniaPorterville, CA Weather Forecast
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Porterville Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY | SATURDAY | SUNDAY |
 |  |  | | | | | | | |
| Clearing | Mostly Clear | Sunny | Clear | Sunny | Clear | Clear | Clear | Clear | Clear |
| Hi: 69°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 71°FHi: 22°C | Lo: 45°FLo: 7°C | Hi: 79°FHi: 26°C | Hi: 86°FHi: 30°C Lo: 53°FLo: 12°C | Hi: 86°FHi: 30°C Lo: 53°FLo: 12°C | Hi: 86°FHi: 30°C Lo: 53°FLo: 12°C | Hi: 86°FHi: 30°C Lo: 53°FLo: 12°C | Hi: 86°FHi: 30°C Lo: 53°FLo: 12°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 151 AM PDT Mon Oct 12 2026 
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Issued: 1101 PM PDT Sun Oct 11 2026
Key Messages
1. Temperatures drop more on Monday before a warmup begins on Tuesday.
2. High wind gusts over 35 mph are likely into early Monday over the San Luis Reservoir with a Lake Wind Advisory issued. Gusts also increase for the Mojave Desert and adjacent slopes as well as the West Side Mountains with a Wind Advisory in effect.
3. There is around a 15 to 25 percent chance of an inch of snow above 9,000 feet through Wednesday night. Snow levels drop to 7,000 to 7,500 feet overnight.
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