Hartley, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hartley, a community in Solano County, California.
This Afternoon
58°F
Chance Light Rain
A chance of rain. Mostly cloudy. High near 58, with temperatures falling to around 56 in the afternoon. East northeast wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Hartley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 58°F | Chance Light Rain | 5 mph ENE | 46% |
| Tonight | 49°F | Chance Light Rain then Mostly Cloudy | 3 to 10 mph N | 44% |
| Wednesday | 69°F | Sunny | 1 to 12 mph NNW | 0% |
| Wednesday Night | 49°F | Partly Cloudy | 1 mph NW | 0% |
| Thursday | 74°F | Sunny | 1 to 7 mph NNW | 0% |
| Thursday Night | 49°F | Mostly Clear | 2 mph NW | 0% |
| Friday | 73°F | Sunny | 0 to 3 mph NNE | 0% |
| Friday Night | 49°F | Clear | 1 mph NE | 0% |
| Saturday | 73°F | Sunny | 0 to 3 mph NE | 0% |
| Saturday Night | 50°F | Mostly Clear | 0 mph | 0% |
| Sunday | 73°F | Mostly Sunny | 2 mph NE | 0% |
| Sunday Night | 50°F | Partly Cloudy | 1 mph ENE | 0% |
| Monday | 72°F | Partly Sunny | 1 mph W | 0% |
| Monday Night | 51°F | Partly Cloudy | 1 mph WNW | 2% |
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 Nov 4, 2026.