Orinda, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Orinda, a city in Contra Costa County, California.
Today
94°F
Slight Chance Drizzle then Sunny
A slight chance of drizzle before 9am. Sunny. High near 94, with temperatures falling to around 89 in the afternoon. West southwest wind 6 to 10 mph. Chance of precipitation is 20%.
7-day forecast for Orinda
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 94°F | Slight Chance Drizzle then Sunny | 6 to 10 mph WSW | 15% |
| Tonight | 57°F | Mostly Clear | 7 to 10 mph WSW | 0% |
| Wednesday | 86°F | Sunny | 7 to 10 mph WSW | 0% |
| Wednesday Night | 57°F | Mostly Clear | 6 to 10 mph WSW | 0% |
| Thursday | 83°F | Sunny | 6 to 10 mph WSW | 0% |
| Thursday Night | 58°F | Mostly Clear | 7 to 10 mph WSW | 0% |
| Friday | 88°F | Sunny | 6 to 9 mph WSW | 0% |
| Friday Night | 59°F | Mostly Clear | 6 to 9 mph SW | 0% |
| Saturday | 87°F | Sunny | 5 to 9 mph SW | 0% |
| Saturday Night | 61°F | Mostly Clear | 9 mph SW | 0% |
| Sunday | 82°F | Sunny | 7 to 12 mph SW | 0% |
| Sunday Night | 58°F | Mostly Clear | 13 mph SW | 0% |
| Monday | 77°F | Sunny | 12 mph SW | 0% |
| Monday Night | 56°F | Mostly Clear | 9 to 13 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 Aug 4, 2026.