Mission Viejo, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mission Viejo, a city in Orange County, California.
Overnight
65°F
Patchy Fog
Patchy fog. Mostly cloudy, with a low around 65. South wind around 0 mph.
7-day forecast for Mission Viejo
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 65°F | Patchy Fog | 0 mph | 0% |
| Tuesday | 86°F | Patchy Fog then Mostly Sunny | 0 to 10 mph S | 1% |
| Tuesday Night | 65°F | Patchy Fog | 0 to 5 mph SW | 1% |
| Wednesday | 86°F | Patchy Fog then Mostly Sunny | 0 to 10 mph SW | 0% |
| Wednesday Night | 66°F | Partly Cloudy then Patchy Fog | 0 to 5 mph SW | 0% |
| Thursday | 88°F | Patchy Fog then Mostly Sunny | 0 to 5 mph SW | 1% |
| Thursday Night | 67°F | Patchy Fog | 0 to 5 mph S | 1% |
| Friday | 89°F | Patchy Fog then Sunny | 0 to 5 mph S | 0% |
| Friday Night | 67°F | Partly Cloudy | 0 to 5 mph S | 0% |
| Saturday | 89°F | Sunny | 0 to 5 mph SW | 0% |
| Saturday Night | 67°F | Mostly Clear | 0 to 5 mph S | 0% |
| Sunday | 88°F | Sunny | 0 to 5 mph S | 0% |
| Sunday Night | 66°F | Partly Cloudy | 0 to 5 mph S | 2% |
| Monday | 86°F | Mostly Sunny | 0 to 10 mph S | 2% |
Forecast source: National Weather Service (api.weather.gov) for Mission Viejo (33.609, -117.656). Updated through the day.
Growing snapshot for Mission Viejo
Last spring frost
Jan 5
First fall frost
Dec 25
Growing season
365 days
Hardiness zone
10b
More local growing data for Mission Viejo: nearby ZIP 92691 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Tustin Irvine Rch, Ca (8 mi from Mission Viejo). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.