Williamsport, OH Weather & Growing Conditions
Tonight
58°F
Partly Cloudy then Patchy Fog
Patchy fog after 4am. Partly cloudy, with a low around 58. Northeast wind 3 to 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 58°F | Partly Cloudy then Patchy Fog | 3 to 7 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% |
| Friday | 72°F | Partly Sunny | 6 to 10 mph N | 8% |
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 Sep 19, 2026.