Healdsburg, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Healdsburg, a city in Sonoma County, California.
Today
97°F
Sunny
Sunny. High near 97, with temperatures falling to around 93 in the afternoon. South wind 2 to 7 mph.
7-day forecast for Healdsburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 97°F | Sunny | 2 to 7 mph S | 0% |
| Tonight | 53°F | Partly Cloudy then Areas Of Fog | 1 to 6 mph SSE | 0% |
| Wednesday | 92°F | Areas Of Fog then Mostly Sunny | 1 to 7 mph S | 0% |
| Wednesday Night | 52°F | Mostly Clear then Patchy Fog | 0 to 6 mph SW | 0% |
| Thursday | 89°F | Patchy Fog then Sunny | 0 to 6 mph SSW | 0% |
| Thursday Night | 54°F | Mostly Clear | 1 to 6 mph WSW | 0% |
| Friday | 96°F | Sunny | 1 to 6 mph SSW | 0% |
| Friday Night | 56°F | Mostly Clear | 0 to 6 mph WSW | 0% |
| Saturday | 96°F | Sunny | 0 to 6 mph S | 0% |
| Saturday Night | 58°F | Mostly Clear | 2 to 6 mph WNW | 0% |
| Sunday | 95°F | Sunny | 2 to 7 mph SSW | 0% |
| Sunday Night | 55°F | Mostly Clear then Patchy Fog | 0 to 7 mph W | 0% |
| Monday | 87°F | Sunny | 0 to 7 mph SSW | 0% |
| Monday Night | 53°F | Mostly Clear | 0 to 7 mph SW | 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 Aug 4, 2026.