Porcupine, ND Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Porcupine, a community in Grant County, North Dakota.
Tonight
56°F
Patchy Fog
Patchy fog. Cloudy, with a low around 56. Northeast wind around 6 mph.
7-day forecast for Porcupine
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Patchy Fog | 6 mph NE | 6% |
| Saturday | 65°F | Patchy Fog then Slight Chance Rain Showers | 3 to 12 mph NE | 21% |
| Saturday Night | 53°F | Chance Rain Showers | 12 mph NE | 44% |
| Sunday | 62°F | Rain Showers Likely | 13 mph E | 58% |
| Sunday Night | 51°F | Rain Showers Likely | 5 to 10 mph E | 58% |
| Monday | 65°F | Slight Chance Rain Showers then Mostly Cloudy | 3 to 10 mph E | 23% |
| Monday Night | 49°F | Mostly Cloudy | 10 mph SE | 8% |
| Tuesday | 69°F | Partly Sunny | 9 to 20 mph SE | 5% |
| Tuesday Night | 53°F | Mostly Cloudy | 17 mph SE | 13% |
| Wednesday | 74°F | Partly Sunny | 17 mph SE | 14% |
| Wednesday Night | 54°F | Slight Chance Rain Showers | 6 to 14 mph SE | 21% |
| Thursday | 76°F | Mostly Sunny | 5 to 9 mph SE | 10% |
| Thursday Night | 55°F | Mostly Clear | 8 mph SE | 8% |
| Friday | 76°F | Mostly Sunny | 8 to 17 mph SE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Porcupine (46.222, -101.100). Updated through the day.
Growing snapshot for Porcupine
Last spring frost
May 13
First fall frost
Sep 27
Growing season
135 days
Hardiness zone
4a
More local growing data for Porcupine: nearby ZIP 58569 weather · frost dates · planting calendar · North Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Flasher, Nd (13.1 mi from Porcupine). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.