Oakley, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Oakley, a city in Contra Costa County, California.
Overnight
65°F
Clear
Clear. Low around 65, with temperatures rising to around 68 overnight. West northwest wind around 8 mph.
7-day forecast for Oakley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 65°F | Clear | 8 mph WNW | 0% |
| Tuesday | 98°F | Sunny | 8 to 14 mph WNW | 0% |
| Tuesday Night | 64°F | Clear | 7 to 14 mph WNW | 0% |
| Wednesday | 91°F | Sunny | 8 to 14 mph WNW | 0% |
| Wednesday Night | 64°F | Clear | 7 to 14 mph W | 0% |
| Thursday | 87°F | Sunny | 7 to 14 mph W | 0% |
| Thursday Night | 65°F | Clear | 7 to 14 mph W | 0% |
| Friday | 93°F | Sunny | 7 to 14 mph W | 0% |
| Friday Night | 66°F | Clear | 5 to 14 mph W | 0% |
| Saturday | 95°F | Sunny | 5 to 13 mph W | 0% |
| Saturday Night | 67°F | Mostly Clear | 5 to 13 mph WSW | 0% |
| Sunday | 92°F | Sunny | 5 to 14 mph W | 0% |
| Sunday Night | 63°F | Clear | 6 to 14 mph WSW | 0% |
| Monday | 87°F | Sunny | 6 to 14 mph W | 0% |
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 Aug 4, 2026.