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.
This Afternoon
62°F
Light Rain
Rain. Mostly cloudy. High near 62, with temperatures falling to around 56 in the afternoon. South wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Pleasant Hill
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 62°F | Light Rain | 5 mph S | 83% |
| Tonight | 49°F | Chance Light Rain then Mostly Cloudy | 5 mph ENE | 51% |
| Wednesday | 67°F | Patchy Fog then Sunny | 5 mph N | 1% |
| Wednesday Night | 49°F | Partly Cloudy | 1 to 5 mph WSW | 0% |
| Thursday | 71°F | Patchy Fog then Sunny | 2 mph WNW | 0% |
| Thursday Night | 49°F | Mostly Clear | 2 mph SW | 0% |
| Friday | 72°F | Sunny | 2 mph NE | 0% |
| Friday Night | 50°F | Clear | 0 mph | 0% |
| Saturday | 73°F | Sunny | 0 to 5 mph NNE | 0% |
| Saturday Night | 51°F | Mostly Clear | 1 mph SW | 0% |
| Sunday | 73°F | Mostly Sunny | 2 mph NW | 0% |
| Sunday Night | 51°F | Partly Cloudy | 1 mph SW | 0% |
| Monday | 71°F | Partly Sunny | 3 mph WSW | 1% |
| Monday Night | 51°F | Partly Cloudy | 2 mph SW | 1% |
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 Nov 4, 2026.