Marengo, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Marengo, a town in Crawford County, Indiana.
This Afternoon
70°F
Slight Chance Drizzle
A slight chance of drizzle after 5pm. Mostly cloudy, with a high near 70. West wind around 8 mph.
7-day forecast for Marengo
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Slight Chance Drizzle | 8 mph W | 11% |
| Tonight | 44°F | Slight Chance Drizzle | 1 to 5 mph W | 2% |
| Thursday | 65°F | Sunny | 3 to 8 mph SW | 0% |
| Thursday Night | 40°F | Partly Cloudy | 0 to 3 mph W | 0% |
| Friday | 59°F | Mostly Cloudy | 1 to 6 mph NW | 1% |
| Friday Night | 31°F | Partly Cloudy | 5 mph N | 0% |
| Saturday | 55°F | Sunny | 5 mph N | 0% |
| Saturday Night | 29°F | Mostly Clear | 2 mph N | 0% |
| Sunday | 58°F | Sunny | 0 to 3 mph W | 0% |
| Sunday Night | 30°F | Mostly Clear | 2 mph NW | 0% |
| Monday | 63°F | Sunny | 2 mph SW | 0% |
| Monday Night | 32°F | Clear | 2 mph SW | 0% |
| Tuesday | 64°F | Sunny | 3 mph W | 1% |
| Tuesday Night | 34°F | Mostly Clear | 1 mph NW | 2% |
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 Nov 4, 2026.