Harman US

East Porterville, CA Weather & Growing Conditions

Overnight
59°F
Clear
Clear. Low around 59, with temperatures rising to around 63 overnight. East southeast wind around 5 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 59°F Clear 5 mph ESE 0%
Saturday 87°F Sunny 5 mph W 0%
Saturday Night 64°F Mostly Clear 5 to 10 mph E 0%
Sunday 89°F Partly Sunny 5 to 10 mph W 0%
Sunday Night 64°F Mostly Cloudy 5 mph E 3%
Monday 86°F Mostly Sunny 5 mph SW 11%
Monday Night 61°F Mostly Clear 5 mph E 6%
Tuesday 88°F Sunny 5 to 10 mph SW 1%
Tuesday Night 63°F Clear 5 to 10 mph ENE 0%
Wednesday 93°F Sunny 5 to 10 mph WNW 0%
Wednesday Night 66°F Clear 5 to 15 mph NE 0%
Thursday 95°F Sunny 5 to 15 mph W 0%
Thursday Night 67°F Mostly Clear 5 to 15 mph ENE 1%
Friday 93°F Sunny 5 to 15 mph WSW 1%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for East Porterville, CA

Last spring frost
Jan 20
First fall frost
Dec 13
Growing season
330 days
Hardiness zone
9b

Explore more for East Porterville, CA: full frost dates · planting calendar · California frost dates

Climate data from the nearest NOAA station, Porterville, Ca (9.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.