St. Marys, WV Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Marys, a city in Pleasants County, West Virginia.
Today
85°F
Mostly Sunny
Mostly sunny, with a high near 85. Southeast wind around 1 mph.
7-day forecast for St. Marys
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny | 1 mph SE | 4% |
| Tonight | 66°F | Slight Chance Showers And Thunderstorms | 0 to 3 mph S | 55% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 6 mph SW | 43% |
| Sunday Night | 60°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph N | 74% |
| Monday | 73°F | Chance Rain Showers | 7 mph NE | 41% |
| Monday Night | 57°F | Chance Showers And Thunderstorms | 3 to 7 mph NE | 72% |
| Tuesday | 71°F | Showers And Thunderstorms Likely | 3 to 7 mph NE | 72% |
| Tuesday Night | 56°F | Showers And Thunderstorms Likely | 9 mph E | 73% |
| Wednesday | 70°F | Showers And Thunderstorms Likely | 8 mph E | 73% |
| Wednesday Night | 54°F | Showers And Thunderstorms Likely | 3 to 9 mph E | 68% |
| Thursday | 70°F | Chance Rain Showers | 5 mph NE | 44% |
| Thursday Night | 53°F | Chance Rain Showers | 2 to 6 mph NE | 36% |
| Friday | 71°F | Partly Sunny | 2 to 6 mph NE | 13% |
| Friday Night | 51°F | Partly Cloudy | 5 mph NE | 13% |
Forecast source: National Weather Service (api.weather.gov) for St. Marys (39.394, -81.204). Updated through the day.
Growing snapshot for St. Marys
Last spring frost
Apr 23
First fall frost
Oct 26
Growing season
185 days
Hardiness zone
6b
More local growing data for St. Marys: nearby ZIP 26170 weather · frost dates · planting calendar · West Virginia frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Newport, Oh (3.1 mi from St. Marys). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.