Harman US

Oakville, CA Weather & Growing Conditions

Overnight
53°F
Partly Cloudy
Partly cloudy, with a low around 53. Wind around 0 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 53°F Partly Cloudy 0 mph 0%
Saturday 89°F Sunny 0 to 3 mph S 0%
Saturday Night 53°F Partly Cloudy 2 mph WNW 0%
Sunday 83°F Patchy Fog then Mostly Cloudy 2 mph SSW 0%
Sunday Night 52°F Mostly Cloudy then Patchy Fog 2 mph W 0%
Monday 84°F Areas Of Fog then Mostly Sunny 0 to 5 mph WSW 0%
Monday Night 51°F Partly Cloudy then Patchy Fog 0 to 5 mph W 0%
Tuesday 86°F Areas Of Fog then Mostly Sunny 0 to 3 mph SW 0%
Tuesday Night 52°F Mostly Clear 0 to 3 mph WSW 0%
Wednesday 93°F Patchy Fog then Sunny 2 mph NNE 0%
Wednesday Night 58°F Partly Cloudy 2 mph NW 0%
Thursday 93°F Sunny 0 to 3 mph WSW 0%
Thursday Night 56°F Partly Cloudy 0 to 3 mph W 0%
Friday 87°F Mostly Sunny 0 to 5 mph WSW 1%

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

Growing snapshot for Oakville, CA

Last spring frost
Feb 3
First fall frost
Dec 4
Growing season
306 days
Hardiness zone
9b

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

Climate data from the nearest NOAA station, Saint Helena, Ca (6.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.