Harman US

Glendora, CA Weather & Growing Conditions

Today
93°F
Sunny
Sunny, with a high near 93. Southwest wind 0 to 10 mph.

7-day forecast

WhenTempForecastWindPrecip
Today 93°F Sunny 0 to 10 mph SW 0%
Tonight 64°F Mostly Clear 0 to 10 mph WSW 0%
Wednesday 91°F Sunny 0 to 5 mph SW 0%
Wednesday Night 65°F Mostly Clear 0 to 5 mph SW 0%
Thursday 91°F Sunny 0 to 5 mph SW 0%
Thursday Night 66°F Mostly Clear 0 to 5 mph SW 0%
Friday 94°F Sunny 0 to 10 mph WSW 0%
Friday Night 68°F Mostly Clear 0 to 10 mph WSW 0%
Saturday 96°F Sunny 0 to 10 mph WSW 0%
Saturday Night 68°F Mostly Clear 0 to 10 mph WSW 0%
Sunday 95°F Sunny 0 to 10 mph SW 0%
Sunday Night 67°F Mostly Clear 0 to 10 mph SW 2%
Monday 91°F Sunny 0 to 10 mph SW 2%
Monday Night 65°F Mostly Clear 0 to 10 mph WSW 1%

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

Growing snapshot for Glendora, CA

Last spring frost
Jan 8
First fall frost
Dec 28
Growing season
354 days
Hardiness zone
10a

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

Climate data from the nearest NOAA station, Pomona/Fairplex, Ca (5.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.