Westmont, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Westmont, a community in Los Angeles County, California.
Tonight
57°F
Mostly Clear
Mostly clear, with a low around 57. North northwest wind 5 to 10 mph.
7-day forecast for Westmont
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 57°F | Mostly Clear | 5 to 10 mph NNW | 1% |
| Wednesday | 75°F | Sunny | 0 to 10 mph NW | 0% |
| Wednesday Night | 58°F | Partly Cloudy | 5 to 10 mph WNW | 0% |
| Thursday | 80°F | Mostly Sunny | 5 to 10 mph NW | 0% |
| Thursday Night | 59°F | Mostly Clear | 5 to 10 mph NNW | 0% |
| Friday | 84°F | Sunny | 5 to 10 mph NNW | 0% |
| Friday Night | 61°F | Mostly Clear | 5 to 10 mph NW | 0% |
| Saturday | 85°F | Sunny | 5 mph NW | 0% |
| Saturday Night | 63°F | Mostly Clear | 5 to 15 mph NW | 0% |
| Sunday | 86°F | Sunny | 0 to 5 mph NNW | 0% |
| Sunday Night | 65°F | Partly Cloudy | 5 to 10 mph NW | 0% |
| Monday | 84°F | Mostly Sunny | 0 to 5 mph NNE | 0% |
| Monday Night | 64°F | Partly Cloudy | 0 to 5 mph NW | 1% |
| Tuesday | 81°F | Mostly Sunny | 0 to 5 mph ESE | 1% |
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 Nov 4, 2026.