Marengo, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Marengo, a village in Morrow County, Ohio.
This Afternoon
74°F
Sunny
Sunny, with a high near 74. South wind around 13 mph.
7-day forecast for Marengo
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Sunny | 13 mph S | 2% |
| Tonight | 59°F | Partly Cloudy | 14 mph SE | 2% |
| Wednesday | 68°F | Light Rain | 16 mph S | 95% |
| Wednesday Night | 54°F | Light Rain | 8 to 16 mph S | 88% |
| Thursday | 66°F | Slight Chance Light Rain then Mostly Sunny | 7 to 14 mph SW | 15% |
| Thursday Night | 48°F | Partly Cloudy | 5 to 8 mph SW | 7% |
| Friday | 63°F | Chance Light Rain | 5 to 8 mph W | 28% |
| Friday Night | 44°F | Chance Light Rain | 7 mph NW | 28% |
| Saturday | 56°F | Chance Light Rain | 9 mph NW | 30% |
| Saturday Night | 39°F | Chance Light Rain then Mostly Cloudy | 3 to 7 mph NW | 25% |
| Sunday | 55°F | Partly Sunny then Slight Chance Light Rain | 5 to 9 mph W | 20% |
| Sunday Night | 37°F | Slight Chance Light Rain | 9 mph W | 20% |
| Monday | 55°F | Chance Light Rain | 8 to 12 mph W | 25% |
| Monday Night | 38°F | Chance Light Rain then Partly Cloudy | 9 mph SW | 25% |
Forecast source: National Weather Service (api.weather.gov) for Marengo (40.401, -82.811). Updated through the day.
Growing snapshot for Marengo
Last spring frost
Apr 27
First fall frost
Oct 17
Growing season
172 days
Hardiness zone
6a
More local growing data for Marengo: nearby ZIP 43334 weather · frost dates · planting calendar · Ohio frost dates
Nearby towns & communities
Ashley
Candlewood Lake
Cardington
Chesterville
Edison
Fulton
Galion
Hidden Lakes
Iberia
Mount Gilead
Sparta
Climate data from the nearest NOAA station, Centerburg 2 Se, Oh (10.5 mi from Marengo). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.