Boonville, CA Weather & Growing Conditions
Overnight
50°F
Patchy Fog
Patchy fog. Partly cloudy, with a low around 50. Northwest wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 50°F | Patchy Fog | 1 mph NW | 0% |
| Saturday | 85°F | Patchy Fog then Sunny | 1 to 8 mph NW | 0% |
| Saturday Night | 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% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Boonville, CA
Last spring frost
Mar 5
First fall frost
Nov 21
Growing season
259 days
Hardiness zone
9b
Explore more for Boonville, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Ukiah Muni Ap, Ca (11.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.