Porterville, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Porterville, a city in Tulare County, California.
Tonight
60°F
Mostly Clear
Mostly clear. Low around 60, with temperatures rising to around 62 overnight. East southeast wind 0 to 5 mph.
7-day forecast for Porterville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 60°F | Mostly Clear | 0 to 5 mph ESE | 0% |
| Saturday | 90°F | Sunny | 0 to 5 mph WSW | 0% |
| Saturday Night | 64°F | Partly Cloudy | 0 to 5 mph ESE | 0% |
| Sunday | 90°F | Partly Sunny | 5 mph WSW | 1% |
| Sunday Night | 64°F | Mostly Cloudy | 0 to 5 mph SSE | 1% |
| Monday | 88°F | Sunny | 5 mph WSW | 3% |
| Monday Night | 63°F | Mostly Clear | 0 to 5 mph E | 2% |
| Tuesday | 91°F | Sunny | 5 mph SW | 1% |
| Tuesday Night | 65°F | Clear | 0 to 5 mph ENE | 0% |
| Wednesday | 96°F | Sunny | 5 mph WSW | 0% |
| Wednesday Night | 67°F | Mostly Clear | 5 mph ENE | 0% |
| Thursday | 99°F | Sunny | 5 mph SW | 2% |
| Thursday Night | 69°F | Mostly Clear | 5 mph SE | 2% |
| Friday | 97°F | Sunny | 5 mph WSW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Porterville (36.064, -119.034). Updated through the day.
Growing snapshot for Porterville
Last spring frost
Feb 20
First fall frost
Nov 30
Growing season
284 days
Hardiness zone
9b
More local growing data for Porterville: nearby ZIP 93267 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Lindsay, Ca (4.3 mi from Porterville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.