Brea, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Brea, a city in Orange County, California.
This Afternoon
73°F
Mostly Sunny
Mostly sunny, with a high near 73. Southwest wind 5 to 10 mph.
7-day forecast for Brea
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Mostly Sunny | 5 to 10 mph SW | 0% |
| Tonight | 55°F | Mostly Clear | 5 mph SE | 0% |
| Wednesday | 74°F | Sunny | 0 to 10 mph S | 0% |
| Wednesday Night | 56°F | Mostly Clear | 0 to 5 mph E | 0% |
| Thursday | 78°F | Sunny | 0 to 5 mph S | 0% |
| Thursday Night | 58°F | Mostly Clear | 0 to 5 mph N | 0% |
| Friday | 82°F | Sunny | 0 to 10 mph N | 0% |
| Friday Night | 60°F | Clear | 0 to 15 mph NE | 0% |
| Saturday | 84°F | Sunny | 0 to 10 mph NE | 0% |
| Saturday Night | 62°F | Clear | 0 to 15 mph N | 0% |
| Sunday | 85°F | Sunny | 0 to 10 mph NE | 0% |
| Sunday Night | 64°F | Partly Cloudy | 0 to 10 mph NE | 0% |
| Monday | 82°F | Mostly Sunny | 0 to 5 mph E | 0% |
| Monday Night | 62°F | Partly Cloudy | 0 mph | 1% |
Forecast source: National Weather Service (api.weather.gov) for Brea (33.925, -117.865). Updated through the day.
Growing snapshot for Brea
Growing season
365 days
Hardiness zone
10a
More local growing data for Brea: nearby ZIP 92821 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Anaheim, Ca (4.7 mi from Brea). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.