Santa Susana, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Santa Susana, a community in Los Angeles County, California.
Overnight
65°F
Mostly Clear
Mostly clear, with a low around 65. East wind around 0 mph.
7-day forecast for Santa Susana
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 65°F | Mostly Clear | 0 mph | 0% |
| Tuesday | 89°F | Sunny | 0 to 10 mph SSW | 0% |
| Tuesday Night | 65°F | Mostly Clear | 0 to 10 mph SSE | 0% |
| Wednesday | 88°F | Sunny | 0 to 10 mph SSW | 0% |
| Wednesday Night | 65°F | Mostly Clear | 0 to 10 mph SSE | 0% |
| Thursday | 88°F | Sunny | 0 to 10 mph SSE | 0% |
| Thursday Night | 65°F | Mostly Clear | 0 to 10 mph SSE | 0% |
| Friday | 93°F | Sunny | 0 to 10 mph S | 0% |
| Friday Night | 66°F | Mostly Clear | 0 to 10 mph SE | 0% |
| Saturday | 93°F | Sunny | 0 to 10 mph S | 0% |
| Saturday Night | 66°F | Clear | 0 to 10 mph SSE | 0% |
| Sunday | 92°F | Sunny | 0 to 10 mph S | 0% |
| Sunday Night | 65°F | Mostly Clear | 5 to 10 mph SSE | 0% |
| Monday | 89°F | Sunny | 5 to 10 mph SSE | 1% |
Forecast source: National Weather Service (api.weather.gov) for Santa Susana (34.259, -118.664). Updated through the day.
Growing snapshot for Santa Susana
Last spring frost
Jan 24
First fall frost
Dec 15
Growing season
329 days
Hardiness zone
10a
More local growing data for Santa Susana: nearby ZIP 91304 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
Climate data from the nearest NOAA station, Woodland Hills Pierce College, Ca (5.1 mi from Santa Susana). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.