Prospect, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Prospect, a village in Marion County, Ohio.
Tonight
49°F
Chance Light Rain then Mostly Cloudy
A chance of rain before midnight. Mostly cloudy, with a low around 49. Southwest wind 7 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Prospect
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 49°F | Chance Light Rain then Mostly Cloudy | 7 to 16 mph SW | 50% |
| Thursday | 63°F | Mostly Sunny | 7 to 15 mph SW | 2% |
| Thursday Night | 44°F | Mostly Cloudy | 5 to 9 mph SW | 12% |
| Friday | 55°F | Chance Light Rain | 6 to 12 mph W | 26% |
| Friday Night | 35°F | Chance Light Rain then Mostly Cloudy | 9 mph NW | 26% |
| Saturday | 51°F | Partly Sunny | 12 mph NW | 7% |
| Saturday Night | 30°F | Partly Cloudy | 7 mph W | 3% |
| Sunday | 56°F | Sunny | 5 to 12 mph W | 1% |
| Sunday Night | 32°F | Mostly Clear | 5 to 9 mph W | 1% |
| Monday | 59°F | Sunny | 5 to 10 mph W | 0% |
| Monday Night | 37°F | Mostly Clear | 8 mph SW | 0% |
| Tuesday | 62°F | Sunny | 7 to 10 mph W | 1% |
| Tuesday Night | 35°F | Mostly Clear | 2 to 7 mph NW | 2% |
| Veterans Day | 59°F | Mostly Sunny | 2 to 7 mph NW | 3% |
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 Nov 5, 2026.