Harman US

Hacienda Heights, CA Weather & Growing Conditions

This Afternoon
85°F
Sunny
Sunny, with a high near 85. Southwest wind 5 to 10 mph.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 85°F Sunny 5 to 10 mph SW 0%
Tonight 65°F Patchy Fog 5 mph SSW 0%
Sunday 84°F Patchy Fog then Mostly Sunny 5 to 10 mph SSW 0%
Sunday Night 64°F Patchy Fog 5 to 10 mph SSW 2%
Monday 81°F Mostly Sunny 5 to 10 mph SSW 2%
Monday Night 63°F Partly Cloudy then Patchy Fog 0 to 10 mph S 0%
Tuesday 81°F Patchy Fog then Mostly Sunny 0 to 10 mph SSW 0%
Tuesday Night 64°F Mostly Clear 0 to 10 mph SW 0%
Wednesday 88°F Sunny 0 to 10 mph SW 0%
Wednesday Night 66°F Mostly Clear 0 to 10 mph SW 0%
Thursday 90°F Sunny 0 to 10 mph SW 1%
Thursday Night 67°F Mostly Clear 0 to 10 mph SSW 1%
Friday 89°F Sunny 0 to 10 mph SW 1%
Friday Night 68°F Partly Cloudy 0 to 10 mph S 1%

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

Growing snapshot for Hacienda Heights, CA

Growing season
365 days
Hardiness zone
10b

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

Climate data from the nearest NOAA station, Fullerton Muni Ap, Ca (8.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.