Allendale, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Allendale, a community in Solano County, California.
Today
69°F
Sunny
Sunny. High near 69, with temperatures falling to around 67 in the afternoon. North northwest wind 0 to 12 mph, with gusts as high as 23 mph.
7-day forecast for Allendale
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 69°F | Sunny | 0 to 12 mph NNW | 2% |
| Tonight | 50°F | Mostly Cloudy | 1 mph NW | 2% |
| Thursday | 73°F | Mostly Sunny | 1 to 9 mph NNW | 0% |
| Thursday Night | 50°F | Clear | 2 mph N | 0% |
| Friday | 73°F | Sunny | 0 to 3 mph NE | 0% |
| Friday Night | 50°F | Mostly Clear | 1 mph NE | 0% |
| Saturday | 72°F | Sunny | 0 to 3 mph NE | 0% |
| Saturday Night | 51°F | Mostly Clear | 1 mph NE | 0% |
| Sunday | 73°F | Sunny | 2 mph NNE | 0% |
| Sunday Night | 51°F | Partly Cloudy | 0 mph | 0% |
| Monday | 72°F | Mostly Sunny | 2 mph W | 1% |
| Monday Night | 51°F | Partly Cloudy | 1 mph WNW | 2% |
| Tuesday | 71°F | Sunny | 2 mph NE | 7% |
| Tuesday Night | 51°F | Mostly Clear | 1 mph E | 10% |
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 4, 2026.