St. Clairsville, OH Weather & Growing Conditions
Today
85°F
Sunny
Sunny, with a high near 85. East wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Sunny | 3 mph E | 0% |
| Tonight | 67°F | Mostly Clear | 3 mph E | 1% |
| Wednesday | 86°F | Mostly Sunny then Scattered Showers And Thunderstorms | 2 to 6 mph S | 50% |
| Wednesday Night | 68°F | Scattered Showers And Thunderstorms | 5 mph SW | 50% |
| Thursday | 84°F | Showers And Thunderstorms Likely | 5 to 8 mph SW | 67% |
| Thursday Night | 68°F | Showers And Thunderstorms Likely | 6 mph SW | 67% |
| Friday | 83°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 6 to 9 mph SW | 80% |
| Friday Night | 66°F | Showers And Thunderstorms | 6 mph SW | 80% |
| Saturday | 83°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 8 mph SW | 49% |
| Saturday Night | 66°F | Chance Showers And Thunderstorms | 7 mph SW | 49% |
| Sunday | 85°F | Slight Chance Showers And Thunderstorms | 6 to 9 mph SW | 21% |
| Sunday Night | 69°F | Slight Chance Showers And Thunderstorms | 5 to 8 mph SW | 24% |
| Monday | 86°F | Chance Showers And Thunderstorms | 8 to 12 mph SW | 33% |
| Monday Night | 68°F | Chance Showers And Thunderstorms | 6 to 9 mph SW | 44% |
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 Aug 4, 2026.