New Madison, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for New Madison, a village in Darke County, Ohio.
This Afternoon
75°F
Partly Sunny
Partly sunny, with a high near 75. Northeast wind around 9 mph.
7-day forecast for New Madison
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 75°F | Partly Sunny | 9 mph NE | 1% |
| Tonight | 57°F | Partly Cloudy | 6 to 9 mph E | 3% |
| Saturday | 80°F | Showers And Thunderstorms Likely | 8 mph SE | 63% |
| Saturday Night | 65°F | Showers And Thunderstorms Likely | 5 to 8 mph S | 69% |
| Sunday | 80°F | Showers And Thunderstorms Likely | 8 mph W | 55% |
| Sunday Night | 58°F | Showers And Thunderstorms Likely | 9 to 13 mph NE | 57% |
| Monday | 70°F | Showers And Thunderstorms Likely | 10 to 14 mph NE | 58% |
| Monday Night | 54°F | Chance Showers And Thunderstorms | 12 to 15 mph NE | 49% |
| Tuesday | 69°F | Chance Showers And Thunderstorms | 14 mph NE | 35% |
| Tuesday Night | 55°F | Chance Showers And Thunderstorms | 8 to 15 mph NE | 26% |
| Wednesday | 69°F | Slight Chance Rain Showers | 10 mph NE | 19% |
| Wednesday Night | 54°F | Slight Chance Rain Showers then Mostly Cloudy | 7 to 10 mph N | 16% |
| Thursday | 70°F | Partly Sunny | 9 mph N | 11% |
| Thursday Night | 53°F | Mostly Cloudy | 6 to 9 mph N | 10% |
Forecast source: National Weather Service (api.weather.gov) for New Madison (39.967, -84.708). Updated through the day.
Growing snapshot for New Madison
Last spring frost
Apr 21
First fall frost
Oct 20
Growing season
180 days
Hardiness zone
6a
More local growing data for New Madison: nearby ZIP 45346 weather · frost dates · planting calendar · Ohio frost dates
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Climate data from the nearest NOAA station, Greenville Wtp, Oh (8.9 mi from New Madison). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.