Fairfield, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fairfield, a city in Solano County, California.
This Afternoon
59°F
Light Rain
Rain. Mostly cloudy. High near 59, with temperatures falling to around 57 in the afternoon. East southeast wind 5 to 8 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Fairfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 59°F | Light Rain | 5 to 8 mph ESE | 80% |
| Tonight | 50°F | Chance Light Rain then Partly Cloudy | 5 to 9 mph NNE | 46% |
| Wednesday | 68°F | Sunny | 6 mph NW | 0% |
| Wednesday Night | 49°F | Partly Cloudy | 0 to 5 mph WNW | 0% |
| Thursday | 73°F | Sunny | 0 to 5 mph NW | 0% |
| Thursday Night | 50°F | Mostly Clear | 0 to 3 mph WNW | 0% |
| Friday | 72°F | Sunny | 0 to 3 mph NNE | 0% |
| Friday Night | 50°F | Clear | 2 mph W | 0% |
| Saturday | 73°F | Sunny | 0 to 6 mph NE | 0% |
| Saturday Night | 51°F | Mostly Clear | 2 mph N | 0% |
| Sunday | 73°F | Mostly Sunny | 0 to 3 mph N | 0% |
| Sunday Night | 52°F | Partly Cloudy | 1 mph WNW | 0% |
| Monday | 71°F | Partly Sunny | 1 to 5 mph W | 1% |
| Monday Night | 51°F | Partly Cloudy | 0 to 3 mph W | 2% |
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 Nov 4, 2026.