Fairfield, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fairfield, a city in Solano County, California.
Overnight
62°F
Clear
Clear, with a low around 62. West southwest wind around 9 mph.
7-day forecast for Fairfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 62°F | Clear | 9 mph WSW | 0% |
| Tuesday | 91°F | Sunny | 9 to 13 mph WSW | 0% |
| Tuesday Night | 60°F | Clear | 12 mph WSW | 0% |
| Wednesday | 90°F | Sunny | 13 mph WSW | 0% |
| Wednesday Night | 60°F | Clear | 9 to 13 mph WSW | 0% |
| Thursday | 91°F | Sunny | 8 to 13 mph WSW | 0% |
| Thursday Night | 61°F | Clear | 8 to 13 mph WSW | 0% |
| Friday | 94°F | Sunny | 7 to 13 mph WSW | 0% |
| Friday Night | 62°F | Clear | 7 to 13 mph WSW | 0% |
| Saturday | 95°F | Sunny | 6 to 12 mph WSW | 0% |
| Saturday Night | 63°F | Mostly Clear | 7 to 12 mph WSW | 0% |
| Sunday | 92°F | Sunny | 7 to 14 mph WSW | 0% |
| Sunday Night | 60°F | Mostly Clear | 9 to 14 mph SW | 0% |
| Monday | 84°F | Sunny | 9 to 14 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Fairfield (38.262, -122.032). Updated through the day.
Growing snapshot for Fairfield
Last spring frost
Jan 15
First fall frost
Dec 14
Growing season
336 days
Hardiness zone
9b
More local growing data for Fairfield: nearby ZIP 94533 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Fairfield, Ca (3.4 mi from Fairfield). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.