Williamsport, OH Weather & Growing Conditions
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
| 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). 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 Nov 4, 2026.