St. Clairsville, OH Weather & Growing Conditions
Today
72°F
Partly Sunny then Light Rain
Rain after 1pm. Partly sunny, with a high near 72. South wind 5 to 12 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Partly Sunny then Light Rain | 5 to 12 mph S | 85% |
| Tonight | 58°F | Light Rain Likely | 8 to 13 mph SW | 99% |
| Thursday | 68°F | Mostly Sunny | 7 to 12 mph SW | 4% |
| Thursday Night | 46°F | Partly Cloudy | 5 mph SW | 1% |
| Friday | 63°F | Partly Sunny then Chance Light Rain | 2 to 8 mph W | 26% |
| Friday Night | 40°F | Chance Light Rain | 8 mph W | 26% |
| Saturday | 53°F | Slight Chance Light Rain | 10 mph W | 24% |
| Saturday Night | 34°F | Slight Chance Light Rain then Mostly Cloudy | 7 mph W | 24% |
| Sunday | 56°F | Mostly Sunny | 6 to 12 mph W | 5% |
| Sunday Night | 32°F | Mostly Clear | 8 mph W | 5% |
| Monday | 57°F | Sunny | 7 to 10 mph W | 8% |
| Monday Night | 34°F | Mostly Clear | 6 to 9 mph SW | 8% |
| Tuesday | 62°F | Sunny | 8 to 12 mph SW | 3% |
| Tuesday Night | 34°F | Partly Cloudy | 3 to 7 mph W | 2% |
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 (11.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.