Pacheco, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pacheco, a community in Contra Costa County, California.
Overnight
60°F
Clear
Clear, with a low around 60. West southwest wind around 9 mph.
7-day forecast for Pacheco
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 60°F | Clear | 9 mph WSW | 0% |
| Tuesday | 99°F | Sunny | 8 to 13 mph W | 0% |
| Tuesday Night | 60°F | Clear | 12 mph SW | 0% |
| Wednesday | 94°F | Sunny | 12 mph WSW | 0% |
| Wednesday Night | 60°F | Mostly Clear | 12 mph WSW | 0% |
| Thursday | 92°F | Sunny | 8 to 12 mph WSW | 0% |
| Thursday Night | 61°F | Clear | 12 mph WSW | 0% |
| Friday | 98°F | Sunny | 7 to 10 mph WSW | 0% |
| Friday Night | 62°F | Mostly Clear | 6 to 9 mph WSW | 0% |
| Saturday | 97°F | Sunny | 5 to 9 mph WSW | 0% |
| Saturday Night | 63°F | Mostly Clear | 9 mph SW | 0% |
| Sunday | 92°F | Sunny | 7 to 12 mph SW | 0% |
| Sunday Night | 60°F | Mostly Clear | 12 mph SW | 0% |
| Monday | 86°F | Sunny | 9 to 13 mph SW | 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 Aug 4, 2026.