Williamsport, OH Weather & Growing Conditions
Today
86°F
Sunny
Sunny, with a high near 86. Northeast wind around 5 mph.
7-day forecast
| 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). Updated through the day.
Growing snapshot for Williamsport, OH
Last spring frost
Apr 17
First fall frost
Oct 28
Growing season
192 days
Hardiness zone
6b
Explore more for Williamsport, OH: full frost dates · planting calendar · Ohio frost dates
Climate data from the nearest NOAA station, Circleville, Oh (8.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.