Marengo, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Marengo, a town in Crawford County, Indiana.
Today
85°F
Sunny
Sunny, with a high near 85. Northeast wind around 3 mph.
7-day forecast for Marengo
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Sunny | 3 mph NE | 0% |
| Tonight | 64°F | Mostly Clear | 2 mph N | 0% |
| Wednesday | 88°F | Sunny | 1 mph N | 2% |
| Wednesday Night | 67°F | Mostly Clear | 1 mph SW | 2% |
| Thursday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 5 mph SW | 15% |
| Thursday Night | 69°F | Chance Showers And Thunderstorms | 3 mph S | 39% |
| Friday | 86°F | Chance Showers And Thunderstorms | 1 to 5 mph SW | 45% |
| Friday Night | 68°F | Chance Showers And Thunderstorms | 2 mph SW | 45% |
| Saturday | 86°F | Chance Showers And Thunderstorms | 1 to 5 mph SW | 31% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms then Partly Cloudy | 2 mph SW | 27% |
| Sunday | 88°F | Mostly Sunny | 1 to 5 mph SW | 11% |
| Sunday Night | 71°F | Partly Cloudy | 3 mph SW | 11% |
| Monday | 90°F | Sunny | 2 to 6 mph SW | 11% |
| Monday Night | 72°F | Slight Chance Showers And Thunderstorms | 3 mph SW | 20% |
Forecast source: National Weather Service (api.weather.gov) for Marengo (38.371, -86.343). Updated through the day.
Growing snapshot for Marengo
Last spring frost
Apr 17
First fall frost
Oct 19
Growing season
184 days
Hardiness zone
6b
More local growing data for Marengo: nearby ZIP 47140 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, English, In (9 mi from Marengo). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.