Fairfield, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fairfield, a city in Butler County, Ohio.
This Afternoon
77°F
Sunny
Sunny, with a high near 77. South wind around 10 mph.
7-day forecast for Fairfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 77°F | Sunny | 10 mph S | 1% |
| Tonight | 61°F | Mostly Cloudy then Showers And Thunderstorms | 7 to 12 mph SE | 77% |
| Wednesday | 68°F | Showers And Thunderstorms | 9 to 15 mph S | 97% |
| Wednesday Night | 50°F | Chance Rain Showers | 3 to 8 mph SW | 25% |
| Thursday | 66°F | Mostly Sunny | 3 to 10 mph SW | 0% |
| Thursday Night | 44°F | Partly Cloudy | 0 to 6 mph W | 1% |
| Friday | 62°F | Partly Sunny | 0 to 8 mph NW | 8% |
| Friday Night | 39°F | Mostly Cloudy | 3 to 7 mph NW | 12% |
| Saturday | 56°F | Partly Sunny | 3 to 7 mph NW | 12% |
| Saturday Night | 34°F | Mostly Cloudy | 0 to 3 mph NW | 5% |
| Sunday | 58°F | Mostly Sunny | 1 to 9 mph W | 10% |
| Sunday Night | 34°F | Partly Cloudy | 1 to 5 mph W | 12% |
| Monday | 61°F | Sunny | 1 to 8 mph W | 12% |
| Monday Night | 37°F | Mostly Clear | 5 mph SW | 10% |
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 Nov 4, 2026.