Fairfield, CA Weather & Growing Conditions
Overnight
61°F
Clear
Clear, with a low around 61. Southwest wind around 14 mph, with gusts as high as 23 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Clear | 14 mph SW | 0% |
| Tuesday | 93°F | Sunny | 15 mph SW | 0% |
| Tuesday Night | 60°F | Clear | 16 mph SW | 0% |
| Wednesday | 92°F | Sunny | 12 to 15 mph WSW | 0% |
| Wednesday Night | 59°F | Clear | 13 to 16 mph WSW | 0% |
| Thursday | 93°F | Sunny | 9 to 15 mph WSW | 0% |
| Thursday Night | 60°F | Clear | 12 to 15 mph WSW | 0% |
| Friday | 95°F | Sunny | 7 to 16 mph WSW | 0% |
| Friday Night | 62°F | Clear | 14 to 17 mph WSW | 0% |
| Saturday | 97°F | Sunny | 7 to 16 mph WSW | 0% |
| Saturday Night | 63°F | Clear | 16 mph WSW | 0% |
| Sunday | 92°F | Sunny | 12 to 17 mph WSW | 0% |
| Sunday Night | 60°F | Mostly Clear | 18 mph SW | 0% |
| Monday | 86°F | Sunny | 18 mph WSW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Fairfield, CA
Last spring frost
Jan 15
First fall frost
Dec 14
Growing season
336 days
Hardiness zone
9b
Explore more for Fairfield, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Fairfield, Ca (7.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.