Sullivan, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sullivan, a community in Ashland County, Ohio.
This Afternoon
64°F
Light Rain
Rain. Cloudy, with a high near 64. South wind around 18 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Sullivan
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 64°F | Light Rain | 18 mph S | 100% |
| Tonight | 52°F | Light Rain Likely | 9 to 18 mph SW | 68% |
| Thursday | 62°F | Partly Sunny | 8 to 17 mph SW | 7% |
| Thursday Night | 44°F | Mostly Cloudy then Slight Chance Light Rain | 6 to 10 mph SW | 21% |
| Friday | 54°F | Chance Light Rain | 7 to 10 mph W | 52% |
| Friday Night | 36°F | Chance Light Rain | 8 to 12 mph W | 52% |
| Saturday | 50°F | Slight Chance Light Rain | 9 to 13 mph W | 19% |
| Saturday Night | 32°F | Mostly Cloudy | 8 mph W | 12% |
| Sunday | 54°F | Mostly Sunny | 7 to 14 mph W | 1% |
| Sunday Night | 33°F | Mostly Clear | 7 to 12 mph W | 1% |
| Monday | 57°F | Sunny | 7 to 12 mph W | 1% |
| Monday Night | 38°F | Mostly Clear | 8 to 12 mph SW | 0% |
| Tuesday | 61°F | Sunny | 12 mph W | 1% |
| Tuesday Night | 36°F | Mostly Clear | 7 mph W | 1% |
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 Nov 5, 2026.