Prospect, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Prospect, a village in Marion County, Ohio.
Overnight
57°F
Partly Cloudy
Partly cloudy, with a low around 57. East wind around 6 mph.
7-day forecast for Prospect
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Partly Cloudy | 6 mph E | 2% |
| Saturday | 81°F | Partly Sunny then Chance Showers And Thunderstorms | 3 to 7 mph SE | 31% |
| Saturday Night | 66°F | Showers And Thunderstorms Likely | 6 mph S | 72% |
| Sunday | 80°F | Showers And Thunderstorms | 5 to 10 mph W | 89% |
| Sunday Night | 58°F | Showers And Thunderstorms | 13 mph NE | 75% |
| Monday | 69°F | Chance Rain Showers | 12 mph NE | 49% |
| Monday Night | 55°F | Chance Rain Showers | 9 to 13 mph NE | 46% |
| Tuesday | 70°F | Chance Rain Showers | 12 mph NE | 46% |
| Tuesday Night | 56°F | Chance Rain Showers | 14 mph NE | 52% |
| Wednesday | 69°F | Chance Rain Showers | 12 to 15 mph E | 52% |
| Wednesday Night | 55°F | Chance Rain Showers | 9 to 13 mph E | 39% |
| Thursday | 70°F | Slight Chance Rain Showers | 10 mph NE | 17% |
| Thursday Night | 54°F | Slight Chance Rain Showers then Mostly Cloudy | 6 to 10 mph NE | 16% |
| Friday | 70°F | Mostly Sunny | 6 to 13 mph NE | 12% |
Forecast source: National Weather Service (api.weather.gov) for Prospect (40.454, -83.185). Updated through the day.
Growing snapshot for Prospect
Last spring frost
Apr 25
First fall frost
Oct 20
Growing season
178 days
Hardiness zone
6a
More local growing data for Prospect: nearby ZIP 43342 weather · frost dates · planting calendar · Ohio frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Marion 2 N, Oh (10.4 mi from Prospect). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.