Benicia, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Benicia, a city in Contra Costa County, California.
Tonight
51°F
Partly Cloudy
Partly cloudy, with a low around 51. East northeast wind around 8 mph.
7-day forecast for Benicia
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 51°F | Partly Cloudy | 8 mph ENE | 0% |
| Wednesday | 67°F | Sunny | 5 to 8 mph NW | 2% |
| Wednesday Night | 51°F | Mostly Cloudy | 7 mph W | 2% |
| Thursday | 71°F | Mostly Sunny | 5 mph WNW | 0% |
| Thursday Night | 51°F | Mostly Clear | 3 mph W | 0% |
| Friday | 71°F | Sunny | 0 to 3 mph ENE | 0% |
| Friday Night | 51°F | Mostly Clear | 2 mph ENE | 0% |
| Saturday | 71°F | Sunny | 0 to 8 mph NE | 0% |
| Saturday Night | 51°F | Mostly Clear | 2 mph WNW | 0% |
| Sunday | 71°F | Mostly Sunny | 0 to 6 mph NNW | 0% |
| Sunday Night | 52°F | Partly Cloudy | 0 to 3 mph WNW | 0% |
| Monday | 70°F | Mostly Sunny | 5 mph WSW | 2% |
| Monday Night | 52°F | Partly Cloudy | 2 mph WSW | 2% |
| Tuesday | 70°F | Sunny | 0 to 3 mph W | 5% |
Forecast source: National Weather Service (api.weather.gov) for Benicia (38.073, -122.155). Updated through the day.
Growing snapshot for Benicia
Last spring frost
Jan 17
First fall frost
Dec 27
Growing season
346 days
Hardiness zone
9b
More local growing data for Benicia: nearby ZIP 94569 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Acalanes Ridge
Alamo
Alhambra Valley
Antioch
Bay Point
Bayview
Bethel Island
Blackhawk
Brentwood
Byron
Castle Hill
Clayton
Clyde
Concord
Contra Costa Centre
Crockett
Danville
Diablo
Discovery Bay
East Richmond Heights
El Cerrito
El Sobrante
Hercules
Knightsen
Lafayette
Martinez
Montalvin Manor
Moraga
Mountain View
Norris Canyon
Climate data from the nearest NOAA station, Vallejo, Ca (3.9 mi from Benicia). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.