St. Marys, WV Weather & Growing Conditions
Today
75°F
Mostly Cloudy then Light Rain
Rain after 1pm. Mostly cloudy. High near 75, with temperatures falling to around 68 in the afternoon. South wind around 9 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Mostly Cloudy then Light Rain | 9 mph S | 84% |
| Tonight | 59°F | Light Rain | 6 to 10 mph S | 99% |
| Thursday | 70°F | Mostly Sunny | 3 to 8 mph SW | 8% |
| Thursday Night | 46°F | Partly Cloudy | 3 mph SW | 2% |
| Friday | 66°F | Mostly Sunny | 2 to 6 mph W | 13% |
| Friday Night | 40°F | Mostly Cloudy then Slight Chance Light Rain | 5 mph W | 15% |
| Saturday | 54°F | Slight Chance Light Rain | 7 mph W | 15% |
| Saturday Night | 35°F | Mostly Cloudy | 5 mph W | 8% |
| Sunday | 57°F | Mostly Sunny | 2 to 7 mph W | 3% |
| Sunday Night | 33°F | Mostly Clear | 5 mph W | 5% |
| Monday | 59°F | Sunny | 3 to 7 mph SW | 6% |
| Monday Night | 34°F | Mostly Clear | 5 mph SW | 5% |
| Tuesday | 63°F | Sunny | 5 to 8 mph SW | 1% |
| Tuesday Night | 34°F | Mostly Clear | 1 to 5 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for St. Marys, WV
Last spring frost
Apr 23
First fall frost
Oct 26
Growing season
185 days
Hardiness zone
6b
Explore more for St. Marys, WV: full frost dates · planting calendar · West Virginia frost dates
Climate data from the nearest NOAA station, Newport, Oh (3.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.