Petersburg, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Petersburg, a city in Pike County, Indiana.
Tonight
72°F
Slight Chance Showers And Thunderstorms then Partly Cloudy
A slight chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 72. East wind around 6 mph. Chance of precipitation is 20%.
7-day forecast for Petersburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 72°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 6 mph E | 16% |
| Saturday | 96°F | Sunny then Slight Chance Showers And Thunderstorms | 6 mph S | 18% |
| Saturday Night | 74°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph S | 18% |
| Sunday | 96°F | Mostly Sunny then Slight Chance Rain Showers | 3 to 7 mph WSW | 17% |
| Sunday Night | 69°F | Chance Rain Showers | 7 mph NNE | 26% |
| Monday | 85°F | Chance Rain Showers then Chance Showers And Thunderstorms | 5 to 9 mph NE | 47% |
| Monday Night | 62°F | Chance Showers And Thunderstorms | 6 to 13 mph NNE | 47% |
| Tuesday | 77°F | Chance Showers And Thunderstorms | 7 to 12 mph NNE | 43% |
| Tuesday Night | 58°F | Mostly Cloudy | 5 to 13 mph NNE | 14% |
| Wednesday | 76°F | Partly Sunny | 5 to 9 mph N | 6% |
| Wednesday Night | 58°F | Partly Cloudy | 3 to 9 mph N | 5% |
| Thursday | 77°F | Mostly Sunny | 2 to 9 mph N | 4% |
| Thursday Night | 58°F | Partly Cloudy | 2 to 9 mph NNE | 4% |
| Friday | 77°F | Mostly Sunny | 3 to 9 mph NNE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Petersburg (38.492, -87.281). Updated through the day.
Growing snapshot for Petersburg
Last spring frost
Apr 20
First fall frost
Oct 22
Growing season
186 days
Hardiness zone
6b
More local growing data for Petersburg: nearby ZIP 47567 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Petersburg 61 Brg, In (2.1 mi from Petersburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.