Williamsport, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Williamsport, a village in Pickaway County, Ohio.
This Afternoon
79°F
Mostly Cloudy
Mostly cloudy, with a high near 79. Northeast wind around 9 mph.
7-day forecast for Williamsport
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 79°F | Mostly Cloudy | 9 mph NE | 0% |
| Tonight | 58°F | Partly Cloudy then Patchy Fog | 3 to 8 mph NE | 1% |
| Saturday | 82°F | Areas Of Fog then Slight Chance Rain Showers | 5 mph E | 20% |
| Saturday Night | 66°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph S | 59% |
| Sunday | 83°F | Showers And Thunderstorms Likely | 7 mph SW | 66% |
| Sunday Night | 62°F | Showers And Thunderstorms Likely | 8 to 12 mph N | 66% |
| Monday | 75°F | Chance Showers And Thunderstorms | 12 mph NE | 46% |
| Monday Night | 59°F | Chance Showers And Thunderstorms | 9 to 13 mph NE | 51% |
| Tuesday | 73°F | Chance Showers And Thunderstorms | 12 mph NE | 51% |
| Tuesday Night | 60°F | Showers And Thunderstorms Likely | 12 mph NE | 57% |
| Wednesday | 72°F | Rain Showers Likely | 12 mph NE | 57% |
| Wednesday Night | 57°F | Chance Showers And Thunderstorms | 7 to 10 mph NE | 50% |
| Thursday | 72°F | Slight Chance Rain Showers then Partly Sunny | 9 mph N | 16% |
| Thursday Night | 56°F | Mostly Cloudy | 5 to 9 mph N | 14% |
Forecast source: National Weather Service (api.weather.gov) for Williamsport (39.582, -83.121). Updated through the day.
Growing snapshot for Williamsport
Last spring frost
Apr 17
First fall frost
Oct 28
Growing season
192 days
Hardiness zone
6b
More local growing data for Williamsport: nearby ZIP 43164 weather · frost dates · planting calendar · Ohio frost dates
Nearby towns & communities
Ashville
Circleville
Commercial Point
Darbyville
Derby
Lockbourne
Logan Elm Village
New Holland
Pancoastburg
South Bloomfield
Tarlton
Climate data from the nearest NOAA station, Circleville, Oh (8.9 mi from Williamsport). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.