Hartley, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hartley, a community in Solano County, California.
Tonight
58°F
Clear
Clear. Low around 58, with temperatures rising to around 60 overnight. Southwest wind around 3 mph.
7-day forecast for Hartley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 58°F | Clear | 3 mph SW | 0% |
| Saturday | 92°F | Sunny | 1 to 8 mph WSW | 0% |
| Saturday Night | 58°F | Partly Cloudy | 2 to 7 mph SSW | 0% |
| Sunday | 84°F | Partly Sunny | 2 to 7 mph SSW | 0% |
| Sunday Night | 58°F | Mostly Cloudy | 2 to 7 mph SW | 0% |
| Monday | 86°F | Sunny | 2 to 10 mph SW | 0% |
| Monday Night | 57°F | Mostly Clear | 2 to 10 mph SW | 0% |
| Tuesday | 88°F | Sunny | 2 to 7 mph SW | 0% |
| Tuesday Night | 59°F | Clear | 0 to 7 mph W | 0% |
| Wednesday | 96°F | Sunny | 2 mph N | 0% |
| Wednesday Night | 62°F | Mostly Clear | 1 mph WNW | 0% |
| Thursday | 97°F | Sunny | 0 to 7 mph W | 0% |
| Thursday Night | 62°F | Mostly Clear | 1 to 7 mph WSW | 0% |
| Friday | 90°F | Sunny | 2 to 9 mph WSW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Hartley (38.420, -121.951). Updated through the day.
Growing snapshot for Hartley
Last spring frost
Feb 18
First fall frost
Nov 28
Growing season
283 days
Hardiness zone
9b
More local growing data for Hartley: nearby ZIP 95625 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Vacaville Nut Tree Ap, Ca (3 mi from Hartley). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.