Hartley, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hartley, a community in Solano County, California.
Overnight
66°F
Clear
Clear, with a low around 66. South southwest wind around 3 mph.
7-day forecast for Hartley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 66°F | Clear | 3 mph SSW | 0% |
| Tuesday | 99°F | Sunny | 2 to 10 mph SSW | 0% |
| Tuesday Night | 62°F | Clear | 2 to 9 mph SSW | 0% |
| Wednesday | 98°F | Sunny | 2 to 10 mph SSW | 0% |
| Wednesday Night | 62°F | Clear | 2 to 10 mph SW | 0% |
| Thursday | 99°F | Sunny | 2 to 10 mph SW | 0% |
| Thursday Night | 63°F | Clear | 2 to 10 mph SW | 0% |
| Friday | 101°F | Sunny | 2 to 9 mph SW | 0% |
| Friday Night | 65°F | Clear | 2 to 9 mph SW | 0% |
| Saturday | 102°F | Sunny | 1 to 9 mph SW | 0% |
| Saturday Night | 65°F | Clear | 2 to 9 mph SW | 0% |
| Sunday | 97°F | Sunny | 2 to 12 mph SW | 0% |
| Sunday Night | 61°F | Mostly Clear | 5 to 12 mph SW | 0% |
| Monday | 90°F | Sunny | 5 to 13 mph SW | 0% |
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 Aug 4, 2026.