Fairfield, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fairfield, a city in Butler County, Ohio.
Overnight
62°F
Patchy Fog
Patchy fog. Partly cloudy, with a low around 62. East wind around 3 mph.
7-day forecast for Fairfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 62°F | Patchy Fog | 3 mph E | 2% |
| Saturday | 84°F | Widespread Fog then Chance Showers And Thunderstorms | 5 mph SE | 45% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph S | 58% |
| Sunday | 85°F | Chance Showers And Thunderstorms | 2 to 6 mph SW | 46% |
| Sunday Night | 64°F | Chance Showers And Thunderstorms | 9 mph NE | 46% |
| Monday | 77°F | Chance Showers And Thunderstorms | 7 to 10 mph NE | 50% |
| Monday Night | 59°F | Chance Showers And Thunderstorms | 7 to 12 mph NE | 50% |
| Tuesday | 73°F | Chance Showers And Thunderstorms | 9 mph NE | 43% |
| Tuesday Night | 59°F | Chance Showers And Thunderstorms | 5 to 12 mph NE | 38% |
| Wednesday | 72°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 to 8 mph N | 28% |
| Wednesday Night | 58°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 3 to 8 mph N | 23% |
| Thursday | 73°F | Partly Sunny | 5 to 8 mph N | 10% |
| Thursday Night | 57°F | Mostly Cloudy | 3 to 8 mph N | 10% |
| Friday | 72°F | Mostly Sunny | 5 to 8 mph N | 6% |
Forecast source: National Weather Service (api.weather.gov) for Fairfield (39.331, -84.543). Updated through the day.
Growing snapshot for Fairfield
Last spring frost
Apr 19
First fall frost
Oct 22
Growing season
186 days
Hardiness zone
6b
More local growing data for Fairfield: nearby ZIP 45014 weather · frost dates · planting calendar · Ohio frost dates
Nearby towns & communities
Beckett Ridge
Darrtown
Hamilton
Jacksonburg
Middletown
Millville
Monroe
New Miami
Olde West Chester
Oxford
Pleasant Run Farm
Seven Mile
Somerville
Trenton
Wetherington
Williamsdale
Woodsdale
Climate data from the nearest NOAA station, Fairfield, Oh (2.5 mi from Fairfield). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.