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
69°F
Patchy Fog
Patchy fog after 5am. Mostly cloudy, with a low around 69. South southwest wind 0 to 5 mph.
7-day forecast for South Whittier
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 69°F | Patchy Fog | 0 to 5 mph SSW | 0% |
| Tuesday | 94°F | Patchy Fog then Mostly Sunny | 0 to 10 mph SSW | 0% |
| Tuesday Night | 69°F | Partly Cloudy then Patchy Fog | 0 to 10 mph SSW | 0% |
| Wednesday | 93°F | Patchy Fog then Mostly Sunny | 0 to 10 mph SW | 0% |
| Wednesday Night | 70°F | Partly Cloudy then Patchy Fog | 0 to 10 mph SSW | 0% |
| Thursday | 93°F | Patchy Fog then Mostly Sunny | 0 to 10 mph SSW | 0% |
| Thursday Night | 69°F | Partly Cloudy then Patchy Fog | 0 to 10 mph SSW | 0% |
| Friday | 90°F | Patchy Fog then Mostly Sunny | 0 to 10 mph S | 0% |
| Friday Night | 69°F | Mostly Clear | 0 to 10 mph SSW | 0% |
| Saturday | 91°F | Sunny | 0 to 10 mph SSW | 0% |
| Saturday Night | 70°F | Mostly Clear | 0 to 10 mph S | 0% |
| Sunday | 90°F | Sunny | 0 to 10 mph S | 0% |
| Sunday Night | 69°F | Mostly Clear | 0 to 10 mph S | 1% |
| Monday | 88°F | Sunny | 0 to 10 mph S | 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
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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 Aug 4, 2026.