Harman US

Oakville, CA Weather & Growing Conditions

Tonight
43°F
Partly Cloudy
Partly cloudy, with a low around 43. Northwest wind around 5 mph.

7-day forecast

WhenTempForecastWindPrecip
Tonight 43°F Partly Cloudy 5 mph NW 1%
Wednesday 69°F Sunny 5 mph NW 2%
Wednesday Night 43°F Mostly Cloudy 3 mph NW 2%
Thursday 74°F Mostly Sunny 0 to 3 mph N 0%
Thursday Night 42°F Mostly Clear 2 mph N 0%
Friday 76°F Sunny 2 mph N 0%
Friday Night 43°F Mostly Clear 1 mph NNE 0%
Saturday 77°F Sunny 2 mph NE 0%
Saturday Night 43°F Mostly Clear 1 mph N 0%
Sunday 77°F Mostly Sunny 2 mph N 0%
Sunday Night 45°F Partly Cloudy 1 mph NNW 0%
Monday 74°F Partly Sunny 1 mph WNW 2%
Monday Night 44°F Partly Cloudy 1 mph NNW 2%
Tuesday 73°F Sunny 1 mph NW 7%

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 Nov 4, 2026.