Fairfield, CA Weather & Growing Conditions
This Afternoon
57°F
Light Rain Likely
Rain likely. Mostly cloudy. High near 57, with temperatures falling to around 55 in the afternoon. East southeast wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 57°F | Light Rain Likely | 7 mph ESE | 62% |
| Tonight | 50°F | Chance Light Rain then Mostly Cloudy | 5 to 13 mph NNE | 44% |
| Wednesday | 66°F | Sunny | 5 to 9 mph NW | 0% |
| Wednesday Night | 50°F | Partly Cloudy | 5 mph W | 0% |
| Thursday | 71°F | Sunny | 1 to 6 mph NW | 0% |
| Thursday Night | 50°F | Mostly Clear | 3 mph WNW | 0% |
| Friday | 70°F | Sunny | 0 to 3 mph N | 0% |
| Friday Night | 50°F | Clear | 2 mph W | 0% |
| Saturday | 70°F | Sunny | 0 to 6 mph NE | 0% |
| Saturday Night | 51°F | Mostly Clear | 2 mph N | 0% |
| Sunday | 71°F | Mostly Sunny | 0 to 3 mph N | 0% |
| Sunday Night | 51°F | Partly Cloudy | 2 mph W | 0% |
| Monday | 69°F | Partly Sunny | 3 mph WSW | 1% |
| Monday Night | 52°F | Partly Cloudy | 0 to 3 mph W | 2% |
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 (3.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.