Seymour, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Seymour, a city in Jackson County, Indiana.
This Afternoon
69°F
Mostly Cloudy
Mostly cloudy. High near 69, with temperatures falling to around 66 in the afternoon. Southwest wind around 9 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Seymour
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Mostly Cloudy | 9 mph SW | 12% |
| Tonight | 47°F | Mostly Cloudy | 1 to 6 mph WSW | 4% |
| Thursday | 64°F | Mostly Sunny | 2 to 8 mph SW | 0% |
| Thursday Night | 43°F | Mostly Cloudy | 0 to 3 mph WSW | 5% |
| Friday | 57°F | Mostly Cloudy | 1 to 6 mph NW | 5% |
| Friday Night | 34°F | Partly Cloudy | 1 to 5 mph NNW | 3% |
| Saturday | 54°F | Mostly Sunny | 1 to 5 mph NW | 0% |
| Saturday Night | 31°F | Partly Cloudy | 2 mph NNW | 0% |
| Sunday | 58°F | Sunny | 0 to 3 mph WNW | 0% |
| Sunday Night | 32°F | Mostly Clear | 2 mph NW | 0% |
| Monday | 62°F | Sunny | 2 mph WNW | 0% |
| Monday Night | 36°F | Clear | 1 mph WSW | 0% |
| Tuesday | 64°F | Sunny | 3 mph W | 1% |
| Tuesday Night | 36°F | Mostly Clear | 2 mph NW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Seymour (38.948, -85.891). Updated through the day.
Growing snapshot for Seymour
Last spring frost
Apr 16
First fall frost
Oct 21
Growing season
187 days
Hardiness zone
6b
More local growing data for Seymour: nearby ZIP 47274 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Seymour 2 N, In (1.8 mi from Seymour). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.