Rancho Santa Margarita, CA Weather & Growing Conditions
This Afternoon
73°F
Sunny
Sunny, with a high near 73. Southwest wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Sunny | 5 mph SW | 0% |
| Tonight | 57°F | Partly Cloudy | 0 to 5 mph NE | 0% |
| Thursday | 77°F | Mostly Sunny | 0 to 5 mph W | 0% |
| Thursday Night | 59°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Friday | 82°F | Sunny | 0 to 10 mph N | 0% |
| Friday Night | 59°F | Clear | 5 to 15 mph N | 0% |
| Saturday | 85°F | Sunny | 0 to 10 mph N | 0% |
| Saturday Night | 62°F | Mostly Clear | 5 to 10 mph NE | 0% |
| Sunday | 85°F | Sunny | 0 to 10 mph N | 0% |
| Sunday Night | 63°F | Partly Cloudy | 0 to 10 mph NE | 0% |
| Monday | 82°F | Mostly Sunny | 0 to 5 mph NW | 0% |
| Monday Night | 62°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Tuesday | 80°F | Sunny | 0 to 5 mph SW | 0% |
| Tuesday Night | 60°F | Mostly Clear | 0 to 5 mph N | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Rancho Santa Margarita, CA
Growing season
365 days
Hardiness zone
10b
Explore more for Rancho Santa Margarita, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Irvine Rch, Ca (9.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.