Cortland, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cortland, a community in Jackson County, Indiana.
Tonight
68°F
Scattered Showers And Thunderstorms then Partly Cloudy
Scattered showers and thunderstorms before 9pm. Partly cloudy, with a low around 68. East northeast wind 1 to 6 mph. Chance of precipitation is 30%.
7-day forecast for Cortland
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 68°F | Scattered Showers And Thunderstorms then Partly Cloudy | 1 to 6 mph ENE | 28% |
| Saturday | 91°F | Partly Sunny then Chance Showers And Thunderstorms | 3 mph S | 42% |
| Saturday Night | 71°F | Chance Showers And Thunderstorms | 2 mph SSE | 26% |
| Sunday | 90°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 3 mph SW | 16% |
| Sunday Night | 66°F | Chance Showers And Thunderstorms | 5 mph NNE | 35% |
| Monday | 79°F | Chance Showers And Thunderstorms | 3 to 7 mph NE | 53% |
| Monday Night | 60°F | Chance Showers And Thunderstorms | 5 to 8 mph NE | 53% |
| Tuesday | 74°F | Chance Showers And Thunderstorms | 7 mph NE | 47% |
| Tuesday Night | 59°F | Chance Showers And Thunderstorms | 2 to 8 mph NNE | 44% |
| Wednesday | 71°F | Mostly Cloudy | 5 mph N | 10% |
| Wednesday Night | 58°F | Mostly Cloudy | 1 to 5 mph N | 8% |
| Thursday | 72°F | Partly Sunny | 1 to 5 mph N | 5% |
| Thursday Night | 58°F | Mostly Cloudy | 1 to 5 mph NNE | 5% |
| Friday | 73°F | Mostly Sunny | 5 mph NNE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Cortland (38.974, -85.963). Updated through the day.
Growing snapshot for Cortland
Last spring frost
Apr 16
First fall frost
Oct 21
Growing season
187 days
Hardiness zone
6b
More local growing data for Cortland: 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 Cortland). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.