Harman US

Concord, CA Weather & Growing Conditions

Overnight
48°F
Mostly Clear
Mostly clear, with a low around 48. East northeast wind around 3 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 48°F Mostly Clear 3 mph ENE 0%
Wednesday 68°F Patchy Fog then Sunny 2 to 6 mph NNW 2%
Wednesday Night 48°F Mostly Cloudy then Patchy Fog 5 mph SSW 2%
Thursday 72°F Patchy Fog then Mostly Sunny 3 mph W 0%
Thursday Night 48°F Mostly Clear 2 mph WSW 0%
Friday 73°F Sunny 0 to 3 mph NNE 0%
Friday Night 48°F Mostly Clear 0 mph 0%
Saturday 74°F Sunny 0 to 5 mph NNE 0%
Saturday Night 49°F Mostly Clear 0 mph 0%
Sunday 74°F Sunny 0 to 3 mph NNW 0%
Sunday Night 50°F Partly Cloudy 1 mph WNW 0%
Monday 71°F Mostly Sunny 3 mph WSW 1%
Monday Night 49°F Partly Cloudy 1 mph SW 1%
Tuesday 71°F Sunny 0 to 3 mph NW 5%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Concord, CA

Last spring frost
Jan 9
First fall frost
Dec 14
Growing season
343 days
Hardiness zone
9b

Explore more for Concord, CA: full frost dates · planting calendar · California frost dates

Climate data from the nearest NOAA station, Concord Buchanan Fld, Ca (3.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.