Williamsport, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Williamsport, a village in Pickaway County, Ohio.
Overnight
60°F
Chance Light Rain
A chance of rain. Cloudy, with a low around 60. South wind around 12 mph, with gusts as high as 24 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Williamsport
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 60°F | Chance Light Rain | 12 mph S | 40% |
| Wednesday | 66°F | Rain | 12 to 15 mph S | 99% |
| Wednesday Night | 52°F | Light Rain Likely then Mostly Cloudy | 6 to 15 mph SW | 73% |
| Thursday | 65°F | Mostly Sunny | 5 to 13 mph SW | 0% |
| Thursday Night | 45°F | Partly Cloudy | 6 mph SW | 0% |
| Friday | 60°F | Chance Light Rain | 2 to 10 mph W | 32% |
| Friday Night | 38°F | Chance Light Rain then Mostly Cloudy | 9 mph NW | 32% |
| Saturday | 54°F | Partly Sunny | 7 to 10 mph NW | 7% |
| Saturday Night | 34°F | Partly Cloudy | 3 to 7 mph W | 4% |
| Sunday | 57°F | Mostly Sunny | 3 to 10 mph W | 3% |
| Sunday Night | 33°F | Mostly Clear | 5 to 8 mph W | 4% |
| Monday | 60°F | Sunny | 5 to 9 mph W | 4% |
| Monday Night | 36°F | Mostly Clear | 6 mph SW | 2% |
| Tuesday | 64°F | Sunny | 6 to 10 mph SW | 1% |
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 Nov 4, 2026.