Harman US

St. Clairsville, OH Weather & Growing Conditions

Overnight
58°F
Partly Cloudy
Partly cloudy, with a low around 58. Northeast wind around 5 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 58°F Partly Cloudy 5 mph NE 1%
Saturday 81°F Mostly Sunny 5 mph E 8%
Saturday Night 65°F Showers And Thunderstorms Likely 2 to 8 mph S 59%
Sunday 79°F Showers And Thunderstorms 6 to 9 mph SW 93%
Sunday Night 56°F Showers And Thunderstorms 7 to 12 mph N 96%
Monday 68°F Chance Rain Showers 12 mph NE 39%
Monday Night 54°F Showers And Thunderstorms Likely 13 mph NE 59%
Tuesday 65°F Showers And Thunderstorms Likely 14 mph NE 60%
Tuesday Night 52°F Rain Showers Likely 16 mph E 72%
Wednesday 65°F Showers And Thunderstorms Likely 15 mph E 72%
Wednesday Night 52°F Showers And Thunderstorms Likely 10 to 15 mph E 66%
Thursday 67°F Chance Rain Showers 10 mph E 54%
Thursday Night 51°F Chance Rain Showers 9 mph NE 29%
Friday 68°F Slight Chance Rain Showers 8 mph NE 19%

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

Growing snapshot for St. Clairsville, OH

Last spring frost
Apr 20
First fall frost
Oct 29
Growing season
192 days
Hardiness zone
6b

Explore more for St. Clairsville, OH: full frost dates · planting calendar · Ohio frost dates

Climate data from the nearest NOAA station, Wheeling, Wv (10.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.