Williamsport, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Williamsport, a village in Pickaway County, Ohio.
Today
86°F
Sunny
Sunny, with a high near 86. Northeast wind around 5 mph.
7-day forecast for Williamsport
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 5 mph NE | 0% |
| Tonight | 66°F | Mostly Clear | 3 mph NE | 2% |
| Wednesday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 mph NW | 39% |
| Wednesday Night | 68°F | Chance Showers And Thunderstorms | 3 mph S | 33% |
| Thursday | 87°F | Chance Showers And Thunderstorms | 2 to 8 mph SW | 45% |
| Thursday Night | 69°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 6 mph S | 62% |
| Friday | 85°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 3 to 9 mph SW | 75% |
| Friday Night | 67°F | Showers And Thunderstorms | 3 to 8 mph SW | 75% |
| Saturday | 85°F | Chance Showers And Thunderstorms | 3 to 8 mph SW | 38% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 3 to 7 mph SW | 38% |
| Sunday | 87°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 9 mph SW | 19% |
| Sunday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 8 mph SW | 19% |
| Monday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 7 to 13 mph SW | 31% |
| Monday Night | 70°F | Chance Showers And Thunderstorms | 5 to 9 mph SW | 33% |
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 Aug 4, 2026.