Healdsburg, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Healdsburg, a city in Sonoma County, California.
This Afternoon
85°F
Sunny
Sunny. High near 85, with temperatures falling to around 83 in the afternoon. West southwest wind around 8 mph.
7-day forecast for Healdsburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 85°F | Sunny | 8 mph WSW | 0% |
| Tonight | 54°F | Mostly Clear | 1 to 7 mph SW | 0% |
| Saturday | 88°F | Sunny | 1 to 6 mph S | 0% |
| Saturday Night | 54°F | Mostly Cloudy | 1 to 5 mph WSW | 0% |
| Sunday | 82°F | Patchy Fog then Partly Sunny | 1 to 6 mph SSW | 0% |
| Sunday Night | 52°F | Mostly Cloudy then Areas Of Fog | 1 to 6 mph WSW | 0% |
| Monday | 85°F | Patchy Fog then Mostly Sunny | 1 to 6 mph SW | 0% |
| Monday Night | 52°F | Mostly Clear then Patchy Fog | 1 to 6 mph SW | 0% |
| Tuesday | 87°F | Patchy Fog then Sunny | 1 to 6 mph SW | 0% |
| Tuesday Night | 54°F | Mostly Clear | 1 to 6 mph NW | 0% |
| Wednesday | 93°F | Sunny | 1 to 6 mph S | 0% |
| Wednesday Night | 57°F | Mostly Clear | 0 to 6 mph WNW | 0% |
| Thursday | 93°F | Sunny | 0 to 6 mph SSW | 0% |
| Thursday Night | 57°F | Partly Cloudy | 1 to 6 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Healdsburg (38.623, -122.865). Updated through the day.
Growing snapshot for Healdsburg
Last spring frost
Feb 15
First fall frost
Dec 2
Growing season
292 days
Hardiness zone
9b
More local growing data for Healdsburg: nearby ZIP 95448 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Healdsburg, Ca (1.3 mi from Healdsburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.