Harman US

Chino Hills, CA Weather & Growing Conditions

Overnight
63°F
Mostly Clear
Mostly clear, with a low around 63. Southwest wind around 5 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 63°F Mostly Clear 5 mph SW 0%
Tuesday 89°F Sunny 0 to 15 mph SW 0%
Tuesday Night 63°F Mostly Clear 0 to 15 mph SW 0%
Wednesday 89°F Sunny 0 to 15 mph SW 0%
Wednesday Night 63°F Mostly Clear 0 to 15 mph SW 0%
Thursday 89°F Sunny 0 to 15 mph SW 1%
Thursday Night 65°F Mostly Clear 0 to 10 mph SW 1%
Friday 90°F Sunny 0 to 15 mph SW 0%
Friday Night 65°F Mostly Clear 0 to 15 mph SW 0%
Saturday 91°F Sunny 0 to 15 mph SW 0%
Saturday Night 65°F Mostly Clear 0 to 15 mph SW 0%
Sunday 90°F Sunny 0 to 15 mph SW 0%
Sunday Night 64°F Mostly Clear 0 to 15 mph SW 1%
Monday 87°F Sunny 0 to 15 mph SW 1%

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

Growing snapshot for Chino Hills, CA

Last spring frost
Jan 17
First fall frost
Dec 19
Growing season
335 days
Hardiness zone
10a

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

Climate data from the nearest NOAA station, Chino Ap, Ca (5.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.