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Geyserville, CA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Geyserville, a community in Sonoma County, California.

Overnight
56°F
Partly Cloudy
Partly cloudy, with a low around 56. West northwest wind around 2 mph.

7-day forecast for Geyserville

WhenTempForecastWindPrecip
Overnight 56°F Partly Cloudy 2 mph WNW 0%
Saturday 90°F Sunny 1 to 6 mph S 0%
Saturday Night 55°F Mostly Cloudy 1 to 6 mph NE 0%
Sunday 84°F Mostly Cloudy 1 to 5 mph SSE 0%
Sunday Night 53°F Mostly Cloudy 0 to 3 mph SW 0%
Monday 86°F Areas Of Fog then Sunny 0 to 6 mph SSW 0%
Monday Night 53°F Partly Cloudy 0 to 6 mph W 0%
Tuesday 88°F Patchy Fog then Sunny 0 to 5 mph SSW 0%
Tuesday Night 55°F Mostly Clear 1 to 5 mph NW 0%
Wednesday 93°F Sunny 1 to 5 mph SSW 0%
Wednesday Night 59°F Mostly Clear 1 to 5 mph NW 0%
Thursday 93°F Sunny 1 to 6 mph WSW 0%
Thursday Night 56°F Partly Cloudy 1 to 6 mph WNW 1%
Friday 87°F Mostly Sunny 1 to 6 mph WNW 1%

Forecast source: National Weather Service (api.weather.gov) for Geyserville (38.717, -122.903). Updated through the day.

Growing snapshot for Geyserville

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

More local growing data for Geyserville: 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 Geyserville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.