Harman US

Healdsburg, CA Weather & Growing Conditions

Overnight
54°F
Mostly Clear
Mostly clear. Low around 54, with temperatures rising to around 56 overnight. West wind around 3 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 54°F Mostly Clear 3 mph W 0%
Saturday 89°F Sunny 1 to 6 mph S 0%
Saturday Night 54°F Mostly Cloudy 1 to 5 mph SSW 0%
Sunday 83°F Mostly Cloudy 1 to 5 mph S 0%
Sunday Night 52°F Mostly Cloudy then Areas Of Fog 0 to 5 mph W 0%
Monday 85°F Areas Of Fog then Mostly Sunny 1 to 6 mph W 0%
Monday Night 52°F Partly Cloudy then Patchy Fog 1 to 6 mph SW 0%
Tuesday 86°F Areas Of Fog then Sunny 1 to 5 mph S 0%
Tuesday Night 53°F Mostly Clear 1 to 5 mph WNW 0%
Wednesday 92°F Sunny 1 to 5 mph SW 0%
Wednesday Night 57°F Partly Cloudy 1 to 5 mph WNW 0%
Thursday 93°F Mostly Sunny 1 to 6 mph WSW 0%
Thursday Night 56°F Partly Cloudy 1 to 6 mph WNW 0%
Friday 87°F Mostly Sunny 1 to 6 mph W 1%

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

Growing snapshot for Healdsburg, CA

Last spring frost
Feb 15
First fall frost
Dec 2
Growing season
292 days
Hardiness zone
9b

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

Climate data from the nearest NOAA station, Healdsburg, Ca (1.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.