Westmont, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Westmont, a community in Los Angeles County, California.
Overnight
66°F
Patchy Fog
Patchy fog after 5am. Mostly cloudy, with a low around 66. South southwest wind around 0 mph.
7-day forecast for Westmont
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 66°F | Patchy Fog | 0 mph | 1% |
| Tuesday | 82°F | Patchy Fog then Mostly Sunny | 0 to 10 mph SW | 0% |
| Tuesday Night | 66°F | Patchy Fog | 0 to 10 mph WSW | 0% |
| Wednesday | 82°F | Patchy Fog then Mostly Sunny | 0 to 10 mph SW | 0% |
| Wednesday Night | 66°F | Patchy Fog | 0 to 10 mph SW | 0% |
| Thursday | 82°F | Patchy Fog then Mostly Sunny | 0 to 10 mph SW | 0% |
| Thursday Night | 68°F | Patchy Fog | 0 to 10 mph SSW | 0% |
| Friday | 83°F | Patchy Fog then Mostly Sunny | 0 to 10 mph S | 0% |
| Friday Night | 68°F | Mostly Clear | 0 to 10 mph SSW | 0% |
| Saturday | 84°F | Sunny | 0 to 10 mph SSW | 0% |
| Saturday Night | 68°F | Mostly Clear | 0 to 10 mph SSW | 0% |
| Sunday | 84°F | Sunny | 0 to 10 mph S | 0% |
| Sunday Night | 68°F | Partly Cloudy | 0 to 10 mph S | 1% |
| Monday | 83°F | Mostly Sunny | 0 to 10 mph S | 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
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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 Aug 4, 2026.