Monroe, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Monroe, a city in Butler County, Ohio.
This Afternoon
79°F
Mostly Cloudy
Mostly cloudy, with a high near 79. Northeast wind around 9 mph.
7-day forecast for Monroe
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 79°F | Mostly Cloudy | 9 mph NE | 3% |
| Tonight | 61°F | Partly Cloudy | 3 to 9 mph NE | 3% |
| Saturday | 83°F | Areas Of Fog then Chance Showers And Thunderstorms | 6 mph SE | 44% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph S | 65% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 3 to 7 mph SW | 49% |
| Sunday Night | 63°F | Chance Showers And Thunderstorms | 10 mph NE | 49% |
| Monday | 75°F | Chance Showers And Thunderstorms | 8 to 12 mph NE | 51% |
| Monday Night | 58°F | Chance Showers And Thunderstorms | 9 to 13 mph NE | 50% |
| Tuesday | 73°F | Chance Showers And Thunderstorms | 12 mph NE | 43% |
| Tuesday Night | 59°F | Chance Showers And Thunderstorms | 7 to 12 mph NE | 40% |
| Wednesday | 72°F | Chance Rain Showers | 9 mph N | 28% |
| Wednesday Night | 57°F | Chance Showers And Thunderstorms | 5 to 10 mph N | 28% |
| Thursday | 72°F | Partly Sunny | 6 to 9 mph N | 11% |
| Thursday Night | 56°F | Mostly Cloudy | 3 to 9 mph N | 11% |
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 Sep 19, 2026.