Allendale, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Allendale, a community in Solano County, California.
This Afternoon
69°F
Mostly Sunny
Mostly sunny. High near 69, with temperatures falling to around 67 in the afternoon. North wind around 2 mph.
7-day forecast for Allendale
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Mostly Sunny | 2 mph N | 1% |
| Tonight | 49°F | Partly Cloudy | 1 mph NW | 1% |
| Thursday | 73°F | Sunny | 0 to 8 mph NNW | 0% |
| Thursday Night | 49°F | Mostly Clear | 1 mph N | 0% |
| Friday | 73°F | Sunny | 0 to 6 mph NNE | 0% |
| Friday Night | 49°F | Clear | 1 mph NNE | 0% |
| Saturday | 72°F | Sunny | 0 to 3 mph NE | 0% |
| Saturday Night | 50°F | Mostly Clear | 1 mph NE | 0% |
| Sunday | 73°F | Sunny | 2 mph NNE | 0% |
| Sunday Night | 50°F | Partly Cloudy | 1 mph NE | 0% |
| Monday | 72°F | Mostly Sunny | 2 mph ENE | 0% |
| Monday Night | 51°F | Partly Cloudy | 1 mph W | 1% |
| Tuesday | 72°F | Sunny | 2 mph NE | 1% |
| Tuesday Night | 51°F | Partly Cloudy | 1 mph E | 7% |
Forecast source: National Weather Service (api.weather.gov) for Allendale (38.443, -121.983). Updated through the day.
Growing snapshot for Allendale
Last spring frost
Jan 31
First fall frost
Dec 11
Growing season
318 days
Hardiness zone
9b
More local growing data for Allendale: nearby ZIP 95688 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Vacaville, Ca (4.2 mi from Allendale). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.