Oakley, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Oakley, a city in Contra Costa County, California.
This Afternoon
67°F
Sunny
Sunny, with a high near 67. West northwest wind 7 to 10 mph.
7-day forecast for Oakley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Sunny | 7 to 10 mph WNW | 1% |
| Tonight | 53°F | Mostly Cloudy | 7 mph WNW | 1% |
| Thursday | 70°F | Sunny | 5 to 9 mph WNW | 0% |
| Thursday Night | 53°F | Mostly Clear | 5 mph W | 0% |
| Friday | 69°F | Sunny | 1 to 6 mph NNW | 0% |
| Friday Night | 52°F | Mostly Clear | 1 mph N | 0% |
| Saturday | 70°F | Sunny | 0 to 5 mph NE | 0% |
| Saturday Night | 52°F | Mostly Clear | 2 mph WNW | 0% |
| Sunday | 71°F | Sunny | 1 to 5 mph NW | 0% |
| Sunday Night | 52°F | Partly Cloudy | 1 mph NW | 0% |
| Monday | 70°F | Mostly Sunny | 0 to 5 mph W | 0% |
| Monday Night | 52°F | Partly Cloudy | 2 mph W | 1% |
| Tuesday | 71°F | Sunny | 3 mph NW | 1% |
| Tuesday Night | 53°F | Partly Cloudy | 2 mph W | 4% |
Forecast source: National Weather Service (api.weather.gov) for Oakley (37.996, -121.694). Updated through the day.
Growing snapshot for Oakley
Last spring frost
Jan 12
First fall frost
Dec 19
Growing season
343 days
Hardiness zone
9b
More local growing data for Oakley: nearby ZIP 94561 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Antioch Pumping Plt #3, Ca (3.4 mi from Oakley). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.