Napoleon, IN Weather & Growing Conditions
This Afternoon
82°F
Mostly Cloudy
Mostly cloudy, with a high near 82. Northeast wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 82°F | Mostly Cloudy | 7 mph NE | 3% |
| Tonight | 62°F | Partly Cloudy | 3 to 7 mph E | 3% |
| Saturday | 84°F | Patchy Fog then Chance Showers And Thunderstorms | 5 mph SE | 43% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 3 mph SE | 37% |
| Sunday | 85°F | Chance Showers And Thunderstorms | 5 mph SW | 34% |
| Sunday Night | 63°F | Chance Showers And Thunderstorms | 6 mph NE | 42% |
| Monday | 77°F | Chance Showers And Thunderstorms | 8 mph NE | 54% |
| Monday Night | 58°F | Chance Showers And Thunderstorms | 6 to 9 mph NE | 51% |
| Tuesday | 72°F | Chance Showers And Thunderstorms | 8 mph NE | 44% |
| Tuesday Night | 57°F | Chance Showers And Thunderstorms | 3 to 9 mph NE | 40% |
| Wednesday | 70°F | Slight Chance Rain Showers then Mostly Cloudy | 3 to 7 mph N | 17% |
| Wednesday Night | 56°F | Mostly Cloudy | 2 to 7 mph N | 14% |
| Thursday | 71°F | Partly Sunny | 6 mph N | 6% |
| Thursday Night | 56°F | Mostly Cloudy | 2 to 6 mph N | 6% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Napoleon, IN
Last spring frost
Apr 15
First fall frost
Oct 26
Growing season
194 days
Hardiness zone
6b
Explore more for Napoleon, IN: full frost dates · planting calendar · Indiana frost dates
Climate data from the nearest NOAA station, Greensburg, In (13.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.