Orinda, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Orinda, a city in Contra Costa County, California.
This Afternoon
77°F
Sunny
Sunny. High near 77, with temperatures falling to around 75 in the afternoon. West southwest wind 6 to 10 mph.
7-day forecast for Orinda
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 77°F | Sunny | 6 to 10 mph WSW | 0% |
| Tonight | 56°F | Mostly Clear | 9 mph SW | 0% |
| Saturday | 80°F | Sunny | 5 to 9 mph SW | 0% |
| Saturday Night | 57°F | Mostly Cloudy | 10 mph SW | 0% |
| Sunday | 72°F | Partly Sunny | 9 mph SW | 3% |
| Sunday Night | 56°F | Mostly Cloudy | 10 mph SW | 3% |
| Monday | 74°F | Mostly Sunny | 10 mph SW | 0% |
| Monday Night | 56°F | Partly Cloudy | 6 to 10 mph SW | 0% |
| Tuesday | 78°F | Sunny | 5 to 8 mph SW | 0% |
| Tuesday Night | 56°F | Mostly Clear | 2 to 8 mph SW | 0% |
| Wednesday | 89°F | Sunny | 2 to 6 mph WSW | 0% |
| Wednesday Night | 61°F | Mostly Clear | 1 to 6 mph SW | 0% |
| Thursday | 89°F | Sunny | 1 to 7 mph WSW | 0% |
| Thursday Night | 61°F | Partly Cloudy | 7 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Orinda (37.882, -122.169). Updated through the day.
Growing snapshot for Orinda
Last spring frost
Jan 3
First fall frost
Jan 1
Growing season
365 days
Hardiness zone
9b
More local growing data for Orinda: nearby ZIP 94563 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Berkeley, Ca (3 mi from Orinda). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.