Fairfield, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fairfield, a city in Butler County, Ohio.
This Afternoon
88°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 4pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 88. West wind around 8 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for Fairfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 88°F | Slight Chance Showers And Thunderstorms | 8 mph W | 66% |
| Tonight | 69°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 3 to 7 mph S | 71% |
| Sunday | 88°F | Partly Sunny then Chance Showers And Thunderstorms | 3 to 9 mph SW | 40% |
| Sunday Night | 61°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 9 mph N | 60% |
| Monday | 73°F | Chance Showers And Thunderstorms | 8 to 13 mph NE | 44% |
| Monday Night | 56°F | Chance Showers And Thunderstorms | 8 to 12 mph NE | 44% |
| Tuesday | 72°F | Chance Showers And Thunderstorms | 10 mph NE | 25% |
| Tuesday Night | 57°F | Chance Showers And Thunderstorms | 5 to 12 mph NE | 40% |
| Wednesday | 72°F | Chance Rain Showers | 7 mph NE | 47% |
| Wednesday Night | 56°F | Chance Showers And Thunderstorms | 3 to 9 mph NE | 47% |
| Thursday | 72°F | Partly Sunny | 3 to 8 mph N | 13% |
| Thursday Night | 55°F | Mostly Cloudy | 3 to 8 mph N | 13% |
| Friday | 73°F | Mostly Sunny | 5 to 9 mph NE | 7% |
| Friday Night | 53°F | Partly Cloudy | 3 to 9 mph NE | 7% |
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
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Jacksonburg
Middletown
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New Miami
Olde West Chester
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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.