Marysville, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Marysville, a city in Union County, Ohio.
This Afternoon
75°F
Partly Sunny
Partly sunny, with a high near 75. Northeast wind around 9 mph.
7-day forecast for Marysville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 75°F | Partly Sunny | 9 mph NE | 0% |
| Tonight | 55°F | Partly Cloudy then Patchy Fog | 3 to 9 mph NE | 2% |
| Saturday | 78°F | Patchy Fog then Chance Showers And Thunderstorms | 2 to 6 mph E | 35% |
| Saturday Night | 64°F | Showers And Thunderstorms Likely | 6 mph S | 60% |
| Sunday | 78°F | Showers And Thunderstorms | 5 to 9 mph W | 81% |
| Sunday Night | 58°F | Showers And Thunderstorms | 8 to 12 mph NE | 81% |
| Monday | 69°F | Chance Rain Showers | 12 mph NE | 52% |
| Monday Night | 55°F | Chance Showers And Thunderstorms | 10 to 14 mph NE | 45% |
| Tuesday | 70°F | Chance Rain Showers | 12 mph NE | 45% |
| Tuesday Night | 56°F | Chance Rain Showers | 9 to 13 mph NE | 52% |
| Wednesday | 69°F | Chance Rain Showers | 10 mph NE | 52% |
| Wednesday Night | 55°F | Chance Rain Showers | 9 mph NE | 37% |
| Thursday | 70°F | Slight Chance Rain Showers | 6 to 9 mph N | 15% |
| Thursday Night | 53°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 9 mph N | 15% |
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 Sep 18, 2026.