Concord, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Concord, a city in Contra Costa County, California.
Tonight
58°F
Mostly Clear
Mostly clear, with a low around 58. South southwest wind around 7 mph.
7-day forecast for Concord
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 58°F | Mostly Clear | 7 mph SSW | 0% |
| Saturday | 90°F | Sunny | 5 to 8 mph SW | 0% |
| Saturday Night | 58°F | Partly Cloudy | 7 mph SW | 0% |
| Sunday | 80°F | Partly Sunny | 9 mph SW | 1% |
| Sunday Night | 57°F | Mostly Cloudy | 9 mph SW | 1% |
| Monday | 82°F | Mostly Sunny | 10 mph WSW | 0% |
| Monday Night | 57°F | Mostly Clear | 5 to 10 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 | 97°F | Sunny | 0 to 5 mph WNW | 0% |
| Wednesday Night | 62°F | Mostly Clear | 1 to 5 mph WSW | 0% |
| Thursday | 97°F | Sunny | 0 to 7 mph W | 0% |
| Thursday Night | 63°F | Mostly Clear | 7 mph WSW | 0% |
| Friday | 90°F | Sunny | 5 to 8 mph WSW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Concord (37.972, -122.002). Updated through the day.
Growing snapshot for Concord
Last spring frost
Jan 9
First fall frost
Dec 14
Growing season
343 days
Hardiness zone
9b
More local growing data for Concord: nearby ZIP 94519 weather · frost dates · planting calendar · California frost dates
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Contra Costa Centre
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Climate data from the nearest NOAA station, Concord Buchanan Fld, Ca (2.3 mi from Concord). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.