Westmont, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Westmont, a community in Los Angeles County, California.
Overnight
64°F
Patchy Fog
Patchy fog. Cloudy, with a low around 64. East wind around 5 mph.
7-day forecast for Westmont
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 64°F | Patchy Fog | 5 mph E | 0% |
| Saturday | 81°F | Patchy Fog then Partly Sunny | 0 to 10 mph SSW | 1% |
| Saturday Night | 65°F | Patchy Fog | 5 to 10 mph S | 1% |
| Sunday | 79°F | Patchy Fog then Partly Sunny | 5 to 10 mph SSW | 1% |
| Sunday Night | 65°F | Patchy Fog | 5 mph SSE | 1% |
| Monday | 76°F | Mostly Sunny | 5 to 10 mph SSW | 1% |
| Monday Night | 65°F | Patchy Fog | 0 to 10 mph SSW | 0% |
| Tuesday | 76°F | Patchy Fog then Mostly Sunny | 0 to 10 mph SSW | 0% |
| Tuesday Night | 66°F | Mostly Clear | 0 to 10 mph WSW | 0% |
| Wednesday | 81°F | Sunny | 0 to 10 mph W | 0% |
| Wednesday Night | 67°F | Partly Cloudy | 0 to 10 mph SSW | 0% |
| Thursday | 82°F | Mostly Sunny | 0 to 10 mph SW | 1% |
| Thursday Night | 67°F | Partly Cloudy | 0 to 10 mph SW | 2% |
| Friday | 83°F | Mostly Sunny | 0 to 10 mph SW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Westmont (33.942, -118.302). Updated through the day.
Growing snapshot for Westmont
Growing season
365 days
Hardiness zone
10b
More local growing data for Westmont: nearby ZIP 90044 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, Hawthorne Muni Ap, Ca (3.2 mi from Westmont). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.