South Whittier, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for South Whittier, a community in Los Angeles County, California.
Overnight
57°F
Mostly Clear
Mostly clear, with a low around 57. Northeast wind 0 to 5 mph.
7-day forecast for South Whittier
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Mostly Clear | 0 to 5 mph NE | 0% |
| Wednesday | 77°F | Sunny | 0 to 5 mph NW | 0% |
| Wednesday Night | 58°F | Partly Cloudy | 5 mph WNW | 0% |
| Thursday | 82°F | Mostly Sunny | 5 mph NW | 0% |
| Thursday Night | 59°F | Mostly Clear | 5 mph NNW | 0% |
| Friday | 86°F | Sunny | 0 to 5 mph NNW | 0% |
| Friday Night | 61°F | Mostly Clear | 5 to 10 mph NNW | 0% |
| Saturday | 87°F | Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 63°F | Mostly Clear | 0 to 15 mph NNW | 0% |
| Sunday | 88°F | Sunny | 0 to 10 mph N | 0% |
| Sunday Night | 65°F | Partly Cloudy | 0 to 10 mph NNE | 0% |
| Monday | 86°F | Sunny | 0 to 5 mph E | 0% |
| Monday Night | 64°F | Partly Cloudy | 0 to 5 mph E | 0% |
| Tuesday | 83°F | Mostly Sunny | 0 to 5 mph SE | 1% |
Forecast source: National Weather Service (api.weather.gov) for South Whittier (33.933, -118.031). Updated through the day.
Growing snapshot for South Whittier
Growing season
365 days
Hardiness zone
10b
More local growing data for South Whittier: nearby ZIP 90604 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
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Climate data from the nearest NOAA station, Fullerton Muni Ap, Ca (4.3 mi from South Whittier). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.