Petersburg, WV Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Petersburg, a city in Grant County, West Virginia.
Today
87°F
Mostly Sunny
Mostly sunny, with a high near 87. East wind 0 to 6 mph.
7-day forecast for Petersburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Mostly Sunny | 0 to 6 mph E | 2% |
| Tonight | 65°F | Mostly Cloudy then Patchy Fog | 0 to 6 mph SE | 19% |
| Wednesday | 88°F | Patchy Fog then Slight Chance Showers And Thunderstorms | 0 to 3 mph SE | 67% |
| Wednesday Night | 67°F | Showers And Thunderstorms then Partly Cloudy | 3 mph S | 77% |
| Thursday | 91°F | Slight Chance Showers And Thunderstorms | 3 mph SW | 85% |
| Thursday Night | 66°F | Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 3 mph SW | 85% |
| Friday | 90°F | Showers And Thunderstorms Likely | 3 mph SW | 65% |
| Friday Night | 65°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 3 mph SW | 65% |
| Saturday | 89°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 1 to 5 mph W | 46% |
| Saturday Night | 66°F | Chance Showers And Thunderstorms | 3 mph W | 46% |
| Sunday | 91°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 mph W | 23% |
| Sunday Night | 67°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 mph W | 23% |
| Monday | 92°F | Mostly Sunny | 2 to 7 mph W | 10% |
| Monday Night | 68°F | Partly Cloudy | 2 to 6 mph W | 14% |
Forecast source: National Weather Service (api.weather.gov) for Petersburg (38.996, -79.128). Updated through the day.
Growing snapshot for Petersburg
Last spring frost
Apr 23
First fall frost
Oct 20
Growing season
179 days
Hardiness zone
7a
More local growing data for Petersburg: nearby ZIP 26847 weather · frost dates · planting calendar · West Virginia frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Petersburg, Wv (2.4 mi from Petersburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.