Whittier, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Whittier, a city in Los Angeles County, California.
Overnight
67°F
Mostly Cloudy
Mostly cloudy, with a low around 67. South wind around 0 mph.
7-day forecast for Whittier
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 67°F | Mostly Cloudy | 0 mph | 0% |
| Tuesday | 91°F | Sunny | 0 to 10 mph SSW | 0% |
| Tuesday Night | 66°F | Mostly Clear | 0 to 10 mph SW | 0% |
| Wednesday | 90°F | Sunny | 0 to 10 mph SW | 0% |
| Wednesday Night | 67°F | Mostly Clear | 0 to 10 mph SSW | 0% |
| Thursday | 90°F | Sunny | 0 to 10 mph SSW | 0% |
| Thursday Night | 65°F | Mostly Clear | 0 to 10 mph SSW | 0% |
| Friday | 92°F | Sunny | 0 to 10 mph SSW | 0% |
| Friday Night | 65°F | Mostly Clear | 0 to 10 mph SSW | 0% |
| Saturday | 92°F | Sunny | 0 to 10 mph SSW | 0% |
| Saturday Night | 65°F | Mostly Clear | 0 to 10 mph SSW | 0% |
| Sunday | 91°F | Sunny | 0 to 10 mph S | 0% |
| Sunday Night | 64°F | Mostly Clear | 0 to 10 mph SSW | 1% |
| Monday | 87°F | Sunny | 0 to 10 mph SSW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Whittier (33.967, -118.020). Updated through the day.
Growing snapshot for Whittier
Growing season
365 days
Hardiness zone
10b
More local growing data for Whittier: nearby ZIP 90602 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Fullerton Muni Ap, Ca (7.5 mi from Whittier). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.