Tustin, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Tustin, a city in Orange County, California.
Today
76°F
Mostly Sunny
Mostly sunny, with a high near 76. West wind 5 to 10 mph.
7-day forecast for Tustin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Mostly Sunny | 5 to 10 mph W | 0% |
| Tonight | 57°F | Mostly Clear | 0 to 5 mph SE | 0% |
| Wednesday | 77°F | Sunny | 0 to 5 mph S | 0% |
| Wednesday Night | 58°F | Mostly Clear | 0 to 5 mph NE | 0% |
| Thursday | 81°F | Sunny | 0 to 5 mph W | 0% |
| Thursday Night | 59°F | Mostly Clear | 0 to 5 mph N | 0% |
| Friday | 85°F | Sunny | 0 to 5 mph N | 0% |
| Friday Night | 63°F | Clear | 5 to 10 mph N | 0% |
| Saturday | 88°F | Sunny | 0 to 5 mph N | 0% |
| Saturday Night | 64°F | Mostly Clear | 5 to 10 mph N | 0% |
| Sunday | 88°F | Sunny | 0 to 5 mph NW | 0% |
| Sunday Night | 65°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Monday | 85°F | Mostly Sunny | 0 to 5 mph N | 0% |
| Monday Night | 63°F | Partly Cloudy | 0 to 5 mph E | 1% |
Forecast source: National Weather Service (api.weather.gov) for Tustin (33.731, -117.811). Updated through the day.
Growing snapshot for Tustin
Growing season
365 days
Hardiness zone
10a
More local growing data for Tustin: nearby ZIP 92780 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Aliso Viejo
Anaheim
Brea
Buena Park
Costa Mesa
Coto de Caza
Cypress
Dana Point
Fountain Valley
Fullerton
Garden Grove
Huntington Beach
Irvine
La Habra
La Habra Heights
La Palma
Ladera Ranch
Laguna Beach
Laguna Hills
Laguna Niguel
Laguna Woods
Lake Forest
Las Flores
Los Alamitos
Midway City
Mission Viejo
Modjeska
Newport Beach
North Tustin
Orange
Climate data from the nearest NOAA station, Santa Ana Fire Stn, Ca (2.7 mi from Tustin). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.