Cortland, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cortland, a community in Jackson County, Indiana.
Today
84°F
Sunny
Sunny. High near 84, with temperatures falling to around 82 in the afternoon. Northeast wind around 2 mph.
7-day forecast for Cortland
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Sunny | 2 mph NE | 0% |
| Tonight | 64°F | Mostly Clear | 2 mph NNE | 0% |
| Wednesday | 87°F | Sunny | 0 mph | 0% |
| Wednesday Night | 67°F | Mostly Clear | 1 mph WSW | 2% |
| Thursday | 87°F | Mostly Sunny then Isolated Showers And Thunderstorms | 0 to 3 mph SW | 21% |
| Thursday Night | 70°F | Isolated Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 to 3 mph SW | 62% |
| Friday | 85°F | Chance Showers And Thunderstorms then Isolated Showers And Thunderstorms | 0 to 3 mph SW | 62% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 2 mph WSW | 57% |
| Saturday | 86°F | Slight Chance Showers And Thunderstorms | 0 to 3 mph WSW | 24% |
| Saturday Night | 69°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 mph SW | 21% |
| Sunday | 88°F | Mostly Sunny | 0 to 3 mph SW | 10% |
| Sunday Night | 71°F | Partly Cloudy | 3 mph SSW | 10% |
| Monday | 90°F | Mostly Sunny | 1 to 5 mph SW | 13% |
| Monday Night | 72°F | Chance Showers And Thunderstorms | 3 mph SW | 29% |
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 Aug 4, 2026.