Petersburg, ND Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Petersburg, a city in Nelson County, North Dakota.
This Afternoon
46°F
Mostly Cloudy
Mostly cloudy. High near 46, with temperatures falling to around 41 in the afternoon. North wind around 16 mph, with gusts as high as 26 mph.
7-day forecast for Petersburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 46°F | Mostly Cloudy | 16 mph N | 2% |
| Tonight | 32°F | Cloudy | 12 to 15 mph N | 2% |
| Wednesday | 46°F | Mostly Cloudy | 16 to 21 mph N | 0% |
| Wednesday Night | 29°F | Partly Cloudy | 17 mph N | 0% |
| Thursday | 37°F | Partly Sunny | 7 to 18 mph NNE | 0% |
| Thursday Night | 23°F | Partly Cloudy | 5 mph SE | 0% |
| Friday | 44°F | Mostly Sunny | 6 to 14 mph SSW | 0% |
| Friday Night | 30°F | Partly Cloudy | 12 mph SW | 0% |
| Saturday | 52°F | Mostly Sunny | 13 to 22 mph WSW | 9% |
| Saturday Night | 33°F | Partly Cloudy | 12 to 15 mph W | 5% |
| Sunday | 52°F | Mostly Sunny | 10 to 14 mph SW | 1% |
| Sunday Night | 37°F | Mostly Cloudy | 10 to 18 mph SW | 0% |
| Monday | 54°F | Mostly Sunny | 20 to 30 mph W | 0% |
| Monday Night | 32°F | Partly Cloudy | 9 to 16 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Petersburg (48.018, -98.001). Updated through the day.
Growing snapshot for Petersburg
Last spring frost
May 11
First fall frost
Sep 28
Growing season
138 days
Hardiness zone
4a
More local growing data for Petersburg: nearby ZIP 58272 weather · frost dates · planting calendar · North Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Petersburg 2 N, Nd (2.2 mi from Petersburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.