Petersburg, IN Weather & Growing Conditions
This Afternoon
68°F
Mostly Cloudy
Mostly cloudy. High near 68, with temperatures falling to around 63 in the afternoon. West southwest wind 9 to 13 mph, with gusts as high as 18 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Mostly Cloudy | 9 to 13 mph WSW | 0% |
| Tonight | 47°F | Mostly Cloudy | 2 to 8 mph SW | 0% |
| Thursday | 64°F | Sunny | 5 to 10 mph SW | 0% |
| Thursday Night | 44°F | Partly Cloudy | 1 to 6 mph W | 0% |
| Friday | 57°F | Partly Sunny | 2 to 12 mph NW | 1% |
| Friday Night | 34°F | Mostly Clear | 3 to 9 mph N | 0% |
| Saturday | 55°F | Sunny | 2 to 6 mph NNW | 0% |
| Saturday Night | 32°F | Mostly Clear | 0 to 3 mph NNW | 0% |
| Sunday | 58°F | Sunny | 0 to 6 mph NNW | 0% |
| Sunday Night | 33°F | Mostly Clear | 0 to 3 mph NNW | 0% |
| Monday | 62°F | Sunny | 0 to 5 mph SW | 0% |
| Monday Night | 37°F | Clear | 3 mph SW | 0% |
| Tuesday | 64°F | Sunny | 5 mph W | 1% |
| Tuesday Night | 39°F | Mostly Clear | 2 mph NW | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Petersburg, IN
Last spring frost
Apr 20
First fall frost
Oct 22
Growing season
186 days
Hardiness zone
6b
Explore more for Petersburg, IN: full frost dates · planting calendar · Indiana frost dates
Climate data from the nearest NOAA station, Petersburg 61 Brg, In (2.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.