Harman US

Port William, OH Weather & Growing Conditions

Overnight
61°F
Light Rain Likely
Rain likely. Cloudy, with a low around 61. South wind around 16 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Overnight 61°F Light Rain Likely 16 mph S 63%
Wednesday 66°F Rain 16 to 20 mph S 99%
Wednesday Night 50°F Light Rain Likely then Mostly Cloudy 7 to 17 mph SW 68%
Thursday 63°F Mostly Sunny 7 to 14 mph SW 0%
Thursday Night 43°F Partly Cloudy 3 to 8 mph SW 0%
Friday 58°F Chance Light Rain 2 to 10 mph W 34%
Friday Night 36°F Chance Light Rain then Mostly Cloudy 7 to 10 mph NW 34%
Saturday 53°F Partly Sunny 7 to 10 mph NW 4%
Saturday Night 32°F Partly Cloudy 2 to 7 mph W 2%
Sunday 56°F Mostly Sunny 3 to 12 mph W 3%
Sunday Night 32°F Mostly Clear 5 to 9 mph W 3%
Monday 59°F Sunny 3 to 9 mph W 3%
Monday Night 35°F Mostly Clear 7 mph SW 3%
Tuesday 63°F Sunny 10 mph W 1%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Port William, OH

Last spring frost
Apr 20
First fall frost
Oct 20
Growing season
180 days

Explore more for Port William, OH: full frost dates · planting calendar · Ohio frost dates

Climate data from the nearest NOAA station, Wilmington 3 N, Oh (4.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.