Sullivan, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sullivan, a community in Ashland County, Ohio.
This Afternoon
74°F
Sunny
Sunny, with a high near 74. North wind around 10 mph.
7-day forecast for Sullivan
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Sunny | 10 mph N | 0% |
| Tonight | 55°F | Partly Cloudy | 2 to 10 mph NE | 1% |
| Saturday | 77°F | Partly Sunny then Chance Rain Showers | 5 mph SE | 35% |
| Saturday Night | 64°F | Showers And Thunderstorms Likely | 7 mph S | 70% |
| Sunday | 75°F | Showers And Thunderstorms | 7 to 12 mph W | 91% |
| Sunday Night | 56°F | Rain Showers Likely | 12 mph NE | 62% |
| Monday | 67°F | Chance Rain Showers | 9 to 14 mph NE | 38% |
| Monday Night | 53°F | Chance Rain Showers | 10 to 14 mph NE | 43% |
| Tuesday | 67°F | Chance Rain Showers | 13 mph NE | 43% |
| Tuesday Night | 54°F | Rain Showers Likely | 15 mph E | 59% |
| Wednesday | 67°F | Rain Showers Likely | 12 to 15 mph E | 59% |
| Wednesday Night | 53°F | Showers And Thunderstorms Likely | 13 mph E | 55% |
| Thursday | 68°F | Chance Rain Showers | 10 mph NE | 34% |
| Thursday Night | 52°F | Slight Chance Rain Showers | 5 to 9 mph N | 22% |
Forecast source: National Weather Service (api.weather.gov) for Sullivan (41.021, -82.215). Updated through the day.
Growing snapshot for Sullivan
Last spring frost
Apr 29
First fall frost
Oct 19
Growing season
172 days
Hardiness zone
6a
More local growing data for Sullivan: nearby ZIP 44880 weather · frost dates · planting calendar · Ohio frost dates
Nearby towns & communities
Ashland
Bailey Lakes
Cinnamon Lake
Hayesville
Jeromesville
Loudonville
Nankin
Perrysville
Polk
Savannah
Climate data from the nearest NOAA station, Chippewa Lake, Oh (14.8 mi from Sullivan). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.