Dupont, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dupont, a town in Jefferson County, Indiana.
Today
90°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. South wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Dupont
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 mph S | 50% |
| Tonight | 69°F | Chance Showers And Thunderstorms then Mostly Cloudy | 3 mph S | 44% |
| Sunday | 90°F | Mostly Sunny | 5 mph W | 10% |
| Sunday Night | 64°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 7 mph N | 46% |
| Monday | 76°F | Chance Rain Showers | 8 mph NE | 52% |
| Monday Night | 58°F | Chance Showers And Thunderstorms | 6 to 9 mph NE | 52% |
| Tuesday | 72°F | Chance Showers And Thunderstorms | 7 mph NE | 27% |
| Tuesday Night | 58°F | Chance Showers And Thunderstorms | 3 to 7 mph NE | 26% |
| Wednesday | 72°F | Chance Rain Showers | 2 to 6 mph N | 27% |
| Wednesday Night | 57°F | Chance Rain Showers then Mostly Cloudy | 2 to 6 mph N | 27% |
| Thursday | 72°F | Partly Sunny | 2 to 6 mph N | 12% |
| Thursday Night | 56°F | Mostly Cloudy | 2 to 6 mph N | 12% |
| Friday | 73°F | Mostly Sunny | 2 to 6 mph NE | 3% |
| Friday Night | 54°F | Partly Cloudy | 6 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Dupont (38.891, -85.517). Updated through the day.
Growing snapshot for Dupont
Last spring frost
Apr 21
First fall frost
Oct 21
Growing season
180 days
Hardiness zone
6b
More local growing data for Dupont: nearby ZIP 47231 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, N Vernon 2 Ese, In (9 mi from Dupont). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.