Pleasant Hill, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pleasant Hill, a city in Contra Costa County, California.
Overnight
60°F
Clear
Clear, with a low around 60. Southwest wind around 6 mph.
7-day forecast for Pleasant Hill
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 60°F | Clear | 6 mph SW | 0% |
| Tuesday | 98°F | Sunny | 6 to 9 mph WSW | 0% |
| Tuesday Night | 60°F | Clear | 6 to 9 mph SW | 0% |
| Wednesday | 93°F | Sunny | 6 to 9 mph WSW | 0% |
| Wednesday Night | 60°F | Mostly Clear | 5 to 9 mph WSW | 0% |
| Thursday | 92°F | Sunny | 5 to 9 mph WSW | 0% |
| Thursday Night | 61°F | Clear | 5 to 9 mph WSW | 0% |
| Friday | 97°F | Sunny | 5 to 9 mph WSW | 0% |
| Friday Night | 62°F | Clear | 6 to 9 mph SW | 0% |
| Saturday | 96°F | Sunny | 5 to 9 mph WSW | 0% |
| Saturday Night | 64°F | Mostly Clear | 9 mph SW | 0% |
| Sunday | 91°F | Sunny | 7 to 12 mph SW | 0% |
| Sunday Night | 61°F | Mostly Clear | 12 mph SW | 0% |
| Monday | 85°F | Sunny | 12 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Pleasant Hill (37.954, -122.076). Updated through the day.
Growing snapshot for Pleasant Hill
Last spring frost
Jan 7
First fall frost
Dec 19
Growing season
346 days
Hardiness zone
9b
More local growing data for Pleasant Hill: nearby ZIP 94523 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Concord Wwtp, Ca (2 mi from Pleasant Hill). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.