St. Clairsville, PA Weather & Growing Conditions
Today
82°F
Patchy Fog then Sunny
Patchy fog before 9am. Sunny, with a high near 82. East wind 0 to 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Patchy Fog then Sunny | 0 to 6 mph E | 0% |
| Tonight | 63°F | Partly Cloudy | 0 to 6 mph SE | 8% |
| Wednesday | 81°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph SE | 49% |
| Wednesday Night | 66°F | Chance Showers And Thunderstorms | 1 to 5 mph S | 39% |
| Thursday | 84°F | Showers And Thunderstorms | 1 to 6 mph SW | 86% |
| Thursday Night | 67°F | Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 3 mph SW | 86% |
| Friday | 84°F | Showers And Thunderstorms | 0 to 5 mph SW | 76% |
| Friday Night | 65°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 3 mph SW | 76% |
| Saturday | 82°F | Chance Showers And Thunderstorms | 1 to 6 mph W | 42% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms then Mostly Cloudy | 1 to 5 mph W | 42% |
| Sunday | 84°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 7 mph W | 16% |
| Sunday Night | 67°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph W | 16% |
| Monday | 85°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph W | 18% |
| Monday Night | 67°F | Slight Chance Showers And Thunderstorms | 5 to 9 mph W | 23% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for St. Clairsville, PA
Last spring frost
Apr 29
First fall frost
Oct 13
Growing season
167 days
Hardiness zone
6b
Explore more for St. Clairsville, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Wolfsburg, Pa (9.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.