Marysville, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Marysville, a city in Union County, Ohio.
Overnight
59°F
Chance Light Rain
A chance of rain. Cloudy, with a low around 59. South wind around 13 mph, with gusts as high as 26 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Marysville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 59°F | Chance Light Rain | 13 mph S | 53% |
| Wednesday | 65°F | Light Rain | 16 mph S | 100% |
| Wednesday Night | 50°F | Light Rain Likely then Mostly Cloudy | 7 to 16 mph SW | 68% |
| Thursday | 62°F | Partly Sunny | 7 to 14 mph SW | 0% |
| Thursday Night | 44°F | Mostly Cloudy | 3 to 7 mph SW | 3% |
| Friday | 56°F | Chance Light Rain | 3 to 9 mph W | 45% |
| Friday Night | 36°F | Chance Light Rain then Mostly Cloudy | 8 mph NW | 45% |
| Saturday | 51°F | Partly Sunny | 10 mph NW | 10% |
| Saturday Night | 32°F | Partly Cloudy | 6 mph NW | 9% |
| Sunday | 55°F | Mostly Sunny | 3 to 10 mph W | 4% |
| Sunday Night | 32°F | Mostly Clear | 5 to 8 mph W | 4% |
| Monday | 57°F | Sunny | 5 to 9 mph W | 3% |
| Monday Night | 36°F | Mostly Clear | 8 mph SW | 2% |
| Tuesday | 62°F | Sunny | 9 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Marysville (40.228, -83.359). Updated through the day.
Growing snapshot for Marysville
Last spring frost
Apr 19
First fall frost
Oct 26
Growing season
188 days
Hardiness zone
6a
More local growing data for Marysville: nearby ZIP 43040 weather · frost dates · planting calendar · Ohio frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Marysville, Oh (6.7 mi from Marysville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.