Mendon, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mendon, a village in Mercer County, Ohio.
Tonight
63°F
Mostly Cloudy then Rain Showers Likely
Rain showers likely after 3am. Mostly cloudy, with a low around 63. South wind 10 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Mendon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 63°F | Mostly Cloudy then Rain Showers Likely | 10 to 16 mph S | 60% |
| Wednesday | 70°F | Rain Showers | 13 to 18 mph S | 98% |
| Wednesday Night | 50°F | Mostly Cloudy | 7 to 10 mph SW | 13% |
| Thursday | 63°F | Mostly Sunny | 8 to 15 mph SW | 1% |
| Thursday Night | 46°F | Mostly Cloudy | 3 to 8 mph W | 1% |
| Friday | 57°F | Chance Light Rain | 3 to 9 mph NW | 28% |
| Friday Night | 38°F | Mostly Cloudy | 6 to 9 mph NW | 13% |
| Saturday | 54°F | Slight Chance Light Rain | 8 mph NW | 15% |
| Saturday Night | 34°F | Partly Cloudy | 3 mph W | 5% |
| Sunday | 56°F | Mostly Sunny then Slight Chance Light Rain | 3 to 10 mph W | 15% |
| Sunday Night | 35°F | Slight Chance Light Rain then Partly Cloudy | 6 to 9 mph W | 15% |
| Monday | 59°F | Mostly Sunny | 5 to 12 mph W | 14% |
| Monday Night | 39°F | Mostly Clear | 9 mph SW | 12% |
| Tuesday | 62°F | Mostly Sunny | 8 to 12 mph W | 3% |
Forecast source: National Weather Service (api.weather.gov) for Mendon (40.673, -84.518). Updated through the day.
Growing snapshot for Mendon
Last spring frost
Apr 27
First fall frost
Oct 19
Growing season
175 days
Hardiness zone
6a
More local growing data for Mendon: nearby ZIP 45862 weather · frost dates · planting calendar · Ohio frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Celina 3 Ne, Oh (7.1 mi from Mendon). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.