Petersburg, ND Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Petersburg, a city in Nelson County, North Dakota.
Today
70°F
Sunny
Sunny, with a high near 70. West northwest wind 14 to 17 mph.
7-day forecast for Petersburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 70°F | Sunny | 14 to 17 mph WNW | 1% |
| Tonight | 49°F | Mostly Clear | 6 to 15 mph WSW | 0% |
| Wednesday | 79°F | Sunny | 12 to 22 mph WSW | 0% |
| Wednesday Night | 56°F | Slight Chance Rain Showers | 12 to 17 mph WSW | 17% |
| Thursday | 81°F | Sunny | 12 to 20 mph W | 10% |
| Thursday Night | 58°F | Mostly Clear | 8 to 14 mph WSW | 1% |
| Friday | 78°F | Sunny | 10 to 16 mph NW | 1% |
| Friday Night | 55°F | Mostly Clear | 6 to 14 mph NNE | 5% |
| Saturday | 79°F | Mostly Sunny | 7 to 16 mph NNE | 6% |
| Saturday Night | 56°F | Mostly Clear then Slight Chance Rain Showers | 7 to 14 mph NNE | 15% |
| Sunday | 76°F | Slight Chance Rain Showers then Mostly Sunny | 8 to 15 mph NNE | 15% |
| Sunday Night | 56°F | Partly Cloudy then Chance Rain Showers | 9 to 14 mph NE | 30% |
| Monday | 76°F | Chance Rain Showers | 9 to 15 mph NNE | 30% |
| Monday Night | 56°F | Slight Chance Rain Showers | 8 to 14 mph NNE | 17% |
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 Aug 4, 2026.