Pacheco, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pacheco, a community in Contra Costa County, California.
This Afternoon
85°F
Sunny
Sunny, with a high near 85. West wind 7 to 12 mph.
7-day forecast for Pacheco
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 85°F | Sunny | 7 to 12 mph W | 0% |
| Tonight | 58°F | Clear | 7 to 10 mph SW | 0% |
| Saturday | 89°F | Sunny | 3 to 9 mph SW | 0% |
| Saturday Night | 59°F | Partly Cloudy | 10 mph SW | 0% |
| Sunday | 80°F | Partly Sunny | 12 mph SW | 1% |
| Sunday Night | 58°F | Mostly Cloudy | 12 mph SW | 1% |
| Monday | 81°F | Mostly Sunny | 12 mph WSW | 0% |
| Monday Night | 59°F | Mostly Clear | 5 to 9 mph SW | 0% |
| Tuesday | 86°F | Sunny | 5 to 8 mph WSW | 0% |
| Tuesday Night | 58°F | Mostly Clear | 1 to 8 mph SW | 0% |
| Wednesday | 96°F | Sunny | 0 to 5 mph W | 0% |
| Wednesday Night | 62°F | Mostly Clear | 1 to 5 mph WSW | 0% |
| Thursday | 96°F | Sunny | 0 to 7 mph W | 0% |
| Thursday Night | 62°F | Mostly Clear | 3 to 7 mph WSW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Pacheco (37.988, -122.070). Updated through the day.
Growing snapshot for Pacheco
Last spring frost
Jan 7
First fall frost
Dec 19
Growing season
346 days
Hardiness zone
9b
More local growing data for Pacheco: 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 Pacheco). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.