Glendora, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Glendora, a city in Los Angeles County, California.
Overnight
64°F
Mostly Clear
Mostly clear, with a low around 64. Southwest wind around 0 mph.
7-day forecast for Glendora
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 64°F | Mostly Clear | 0 mph | 0% |
| Tuesday | 92°F | Sunny | 0 to 10 mph SW | 0% |
| Tuesday Night | 63°F | Mostly Clear | 0 to 10 mph WSW | 0% |
| Wednesday | 91°F | Sunny | 0 to 10 mph SW | 0% |
| Wednesday Night | 64°F | Mostly Clear | 0 to 5 mph WSW | 0% |
| Thursday | 91°F | Sunny | 0 to 10 mph SW | 0% |
| Thursday Night | 66°F | Mostly Clear | 0 to 10 mph WSW | 0% |
| Friday | 94°F | Sunny | 0 to 10 mph SW | 0% |
| Friday Night | 67°F | Mostly Clear | 0 to 10 mph SW | 0% |
| Saturday | 95°F | Sunny | 0 to 10 mph SW | 0% |
| Saturday Night | 67°F | Mostly Clear | 0 to 10 mph WSW | 0% |
| Sunday | 94°F | Sunny | 0 to 10 mph WSW | 0% |
| Sunday Night | 66°F | Mostly Clear | 0 to 10 mph SSW | 2% |
| Monday | 90°F | Sunny | 0 to 10 mph SSW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Glendora (34.145, -117.848). Updated through the day.
Growing snapshot for Glendora
Last spring frost
Jan 8
First fall frost
Dec 28
Growing season
354 days
Hardiness zone
10a
More local growing data for Glendora: nearby ZIP 91741 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
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Climate data from the nearest NOAA station, Pomona/Fairplex, Ca (6.9 mi from Glendora). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.