Boonville, CA Weather & Growing Conditions

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

Today

85°F

Patchy Fog then Sunny

Patchy fog before 11am. Sunny, with a high near 85. Northwest wind 1 to 8 mph.

7-day forecast for Boonville

When	Temp	Forecast	Wind	Precip
Today	85°F	Patchy Fog then Sunny	1 to 8 mph NW	0%
Tonight	49°F	Mostly Cloudy then Patchy Fog	1 to 8 mph NW	0%
Sunday	83°F	Patchy Fog then Mostly Cloudy	1 to 8 mph NW	0%
Sunday Night	50°F	Mostly Cloudy then Areas Of Fog	0 to 8 mph NNW	0%
Monday	88°F	Areas Of Fog then Mostly Sunny	0 to 8 mph WNW	0%
Monday Night	50°F	Mostly Clear then Areas Of Fog	0 to 8 mph NW	0%
Tuesday	86°F	Areas Of Fog then Sunny	0 to 9 mph NW	0%
Tuesday Night	50°F	Mostly Clear then Patchy Fog	1 to 9 mph NNW	0%
Wednesday	90°F	Patchy Fog then Sunny	1 to 8 mph NNW	0%
Wednesday Night	53°F	Partly Cloudy	1 to 8 mph NNW	0%
Thursday	91°F	Sunny	1 to 8 mph NW	0%
Thursday Night	52°F	Partly Cloudy	1 to 8 mph NNW	1%
Friday	85°F	Mostly Sunny	1 to 8 mph NW	2%
Friday Night	50°F	Partly Cloudy	1 to 8 mph NNW	4%

Forecast source: National Weather Service (api.weather.gov) for Boonville (39.011, -123.374). Updated through the day.

Growing snapshot for Boonville

Last spring frost

Mar 5

First fall frost

Nov 21

Growing season

259 days

Hardiness zone

More local growing data for Boonville: nearby ZIP 95415 weather · frost dates · planting calendar · California frost dates

Nearby towns & communities

Albion Anchor Bay Brooktrails Calpella Caspar Cleone Comptche Covelo Fort Bragg Hopland Laytonville Leggett Little River Manchester Mendocino Philo Point Arena Potter Valley Redwood Valley Talmage Ukiah Willits

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Climate data from the nearest NOAA station, Ukiah Muni Ap, Ca (11.5 mi from Boonville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.