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.

Tonight

61°F

Partly Cloudy then Patchy Fog

Patchy fog after 5am. Partly cloudy, with a low around 61. South southeast wind around 5 mph.

7-day forecast for South Whittier

When	Temp	Forecast	Wind	Precip
Tonight	61°F	Partly Cloudy then Patchy Fog	5 mph SSE	0%
Saturday	88°F	Patchy Fog then Mostly Sunny	0 to 10 mph SSW	0%
Saturday Night	63°F	Patchy Fog	0 to 5 mph SSW	0%
Sunday	86°F	Patchy Fog then Partly Sunny	5 to 10 mph SSW	0%
Sunday Night	62°F	Patchy Fog	5 mph S	1%
Monday	83°F	Patchy Fog then Mostly Sunny	5 to 10 mph S	0%
Monday Night	65°F	Mostly Clear	0 to 10 mph S	1%
Tuesday	81°F	Sunny	0 to 10 mph S	0%
Tuesday Night	66°F	Mostly Clear	0 to 10 mph SW	0%
Wednesday	88°F	Sunny	0 to 10 mph SW	0%
Wednesday Night	68°F	Mostly Clear	0 to 10 mph SSW	2%
Thursday	89°F	Sunny	0 to 10 mph SSW	1%
Thursday Night	70°F	Mostly Clear	0 to 10 mph SSW	1%
Friday	90°F	Sunny	0 to 10 mph SW	2%

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

Acton Agoura Hills Agua Dulce Alhambra Alondra Park Altadena Arcadia Artesia Avalon Avocado Heights Azusa Baldwin Park Bell Bell Canyon Bell Gardens Bellflower Beverly Hills Bradbury Burbank Calabasas Carson Castaic Cerritos Charter Oak Citrus Claremont Commerce Compton Covina Cudahy

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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 Sep 19, 2026.