Allendale, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Allendale, a community in Solano County, California.
Overnight
69°F
Clear
Clear, with a low around 69. Southwest wind around 1 mph.
7-day forecast for Allendale
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 69°F | Clear | 1 mph SW | 0% |
| Tuesday | 101°F | Sunny | 1 to 9 mph S | 0% |
| Tuesday Night | 63°F | Clear | 1 to 7 mph SW | 0% |
| Wednesday | 100°F | Sunny | 1 to 8 mph SW | 0% |
| Wednesday Night | 63°F | Clear | 0 to 8 mph SW | 0% |
| Thursday | 100°F | Sunny | 0 to 8 mph SSW | 0% |
| Thursday Night | 64°F | Clear | 0 to 8 mph SW | 0% |
| Friday | 102°F | Sunny | 0 to 7 mph SSW | 0% |
| Friday Night | 66°F | Clear | 1 to 7 mph SW | 0% |
| Saturday | 103°F | Sunny | 0 to 7 mph SW | 0% |
| Saturday Night | 67°F | Clear | 0 to 7 mph SSW | 0% |
| Sunday | 99°F | Sunny | 0 to 9 mph SSW | 0% |
| Sunday Night | 62°F | Mostly Clear | 2 to 9 mph SW | 0% |
| Monday | 93°F | Sunny | 2 to 10 mph SW | 0% |
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 Aug 4, 2026.