Monroe, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Monroe, a city in Butler County, Ohio.
Today
85°F
Sunny
Sunny, with a high near 85. Northeast wind around 5 mph.
7-day forecast for Monroe
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Sunny | 5 mph NE | 0% |
| Tonight | 64°F | Mostly Clear | 3 mph NE | 1% |
| Wednesday | 88°F | Mostly Sunny | 0 to 5 mph N | 13% |
| Wednesday Night | 67°F | Partly Cloudy | 0 to 3 mph N | 6% |
| Thursday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 1 to 8 mph SW | 25% |
| Thursday Night | 68°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 2 to 6 mph SW | 61% |
| Friday | 86°F | Showers And Thunderstorms Likely | 2 to 8 mph SW | 65% |
| Friday Night | 67°F | Showers And Thunderstorms Likely | 1 to 6 mph SW | 65% |
| Saturday | 86°F | Chance Showers And Thunderstorms | 1 to 7 mph SW | 31% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms | 1 to 6 mph SW | 30% |
| Sunday | 88°F | Mostly Sunny | 1 to 9 mph SW | 14% |
| Sunday Night | 70°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 3 to 8 mph SW | 15% |
| Monday | 90°F | Slight Chance Showers And Thunderstorms | 5 to 12 mph SW | 23% |
| Monday Night | 70°F | Chance Showers And Thunderstorms | 3 to 8 mph SW | 29% |
Forecast source: National Weather Service (api.weather.gov) for Monroe (39.446, -84.366). Updated through the day.
Growing snapshot for Monroe
Last spring frost
Apr 24
First fall frost
Oct 19
Growing season
178 days
Hardiness zone
6b
More local growing data for Monroe: nearby ZIP 45050 weather · frost dates · planting calendar · Ohio frost dates
Nearby towns & communities
Beckett Ridge
Darrtown
Fairfield
Hamilton
Jacksonburg
Middletown
Millville
New Miami
Olde West Chester
Oxford
Pleasant Run Farm
Seven Mile
Somerville
Trenton
Wetherington
Williamsdale
Woodsdale
Climate data from the nearest NOAA station, Franklin, Oh (8 mi from Monroe). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.