Rossmoor, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rossmoor, a community in Orange County, California.
Today
80°F
Sunny
Sunny, with a high near 80. South wind 0 to 10 mph.
7-day forecast for Rossmoor
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Sunny | 0 to 10 mph S | 0% |
| Tonight | 68°F | Partly Cloudy | 0 to 10 mph W | 0% |
| Wednesday | 79°F | Mostly Sunny | 0 to 10 mph S | 0% |
| Wednesday Night | 68°F | Partly Cloudy | 0 to 10 mph SW | 0% |
| Thursday | 80°F | Mostly Sunny | 0 to 10 mph SW | 0% |
| Thursday Night | 69°F | Partly Cloudy | 0 to 10 mph S | 0% |
| Friday | 79°F | Mostly Sunny | 0 to 10 mph S | 0% |
| Friday Night | 69°F | Partly Cloudy | 0 to 10 mph S | 0% |
| Saturday | 84°F | Mostly Sunny | 0 to 10 mph S | 0% |
| Saturday Night | 69°F | Mostly Clear | 0 to 10 mph S | 0% |
| Sunday | 83°F | Mostly Sunny | 0 to 10 mph S | 0% |
| Sunday Night | 69°F | Partly Cloudy | 5 to 10 mph S | 1% |
| Monday | 81°F | Mostly Sunny | 5 to 10 mph S | 1% |
| Monday Night | 68°F | Mostly Clear | 5 to 10 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov) for Rossmoor (33.789, -118.080). Updated through the day.
Growing snapshot for Rossmoor
Growing season
365 days
Hardiness zone
10a
More local growing data for Rossmoor: nearby ZIP 90720 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Long Beach Daugherty Fld, Ca (4.9 mi from Rossmoor). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.