Boonville, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Boonville, a community in Mendocino County, California.
Today
100°F
Sunny
Sunny, with a high near 100. West wind 0 to 8 mph.
7-day forecast for Boonville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 100°F | Sunny | 0 to 8 mph W | 0% |
| Tonight | 60°F | Mostly Clear | 0 to 8 mph NNW | 0% |
| Wednesday | 97°F | Sunny | 0 to 7 mph W | 0% |
| Wednesday Night | 57°F | Mostly Clear | 0 to 7 mph NW | 0% |
| Thursday | 97°F | Sunny | 0 to 7 mph W | 0% |
| Thursday Night | 57°F | Mostly Clear | 0 to 7 mph NW | 0% |
| Friday | 100°F | Sunny | 0 to 8 mph WNW | 0% |
| Friday Night | 60°F | Mostly Clear | 1 to 8 mph NNW | 0% |
| Saturday | 98°F | Sunny | 1 to 9 mph NNW | 0% |
| Saturday Night | 57°F | Mostly Clear | 3 to 9 mph NW | 0% |
| Sunday | 90°F | Sunny | 3 to 9 mph NW | 0% |
| Sunday Night | 52°F | Mostly Clear | 2 to 9 mph NW | 0% |
| Monday | 88°F | Sunny | 2 to 8 mph WNW | 0% |
| Monday Night | 51°F | Mostly Clear then Patchy Fog | 1 to 8 mph NW | 0% |
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
9b
More local growing data for Boonville: nearby ZIP 95415 weather · frost dates · planting calendar · California frost dates
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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 Aug 4, 2026.