Harman US

Garden Grove, CA Weather & Growing Conditions

Today
81°F
Mostly Sunny
Mostly sunny, with a high near 81. Southwest wind 0 to 10 mph.

7-day forecast

WhenTempForecastWindPrecip
Today 81°F Mostly Sunny 0 to 10 mph SW 0%
Tonight 68°F Partly Cloudy 0 to 10 mph SW 0%
Wednesday 81°F Mostly Sunny 0 to 10 mph S 0%
Wednesday Night 69°F Partly Cloudy 0 to 10 mph SW 0%
Thursday 81°F Mostly Sunny 0 to 10 mph SW 0%
Thursday Night 69°F Partly Cloudy 0 to 10 mph S 0%
Friday 81°F Mostly Sunny 0 to 10 mph S 0%
Friday Night 69°F Partly Cloudy 0 to 10 mph S 0%
Saturday 85°F Sunny 0 to 10 mph S 0%
Saturday Night 70°F Mostly Clear 0 to 10 mph S 0%
Sunday 83°F Mostly Sunny 0 to 10 mph S 0%
Sunday Night 69°F Partly Cloudy 5 to 10 mph S 1%
Monday 82°F Mostly Sunny 5 to 10 mph S 1%
Monday Night 69°F Mostly Clear 5 to 10 mph S 1%

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

Growing snapshot for Garden Grove, CA

Growing season
365 days
Hardiness zone
10a

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

Climate data from the nearest NOAA station, Fullerton Muni Ap, Ca (6.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.