Coleharbor, ND Weather & Growing Conditions
Tonight
32°F
Patchy Fog
Patchy fog. Partly cloudy. Low around 32, with temperatures rising to around 34 overnight. Northwest wind 0 to 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 32°F | Patchy Fog | 0 to 6 mph NW | 0% |
| Wednesday | 52°F | Patchy Fog then Mostly Sunny | 6 to 12 mph N | 0% |
| Wednesday Night | 26°F | Partly Cloudy | 5 to 8 mph N | 0% |
| Thursday | 43°F | Mostly Sunny | 6 mph NE | 0% |
| Thursday Night | 25°F | Partly Cloudy | 7 mph S | 0% |
| Friday | 52°F | Mostly Sunny | 9 mph SW | 0% |
| Friday Night | 31°F | Mostly Clear | 6 to 9 mph SW | 1% |
| Saturday | 55°F | Mostly Sunny | 10 to 18 mph W | 3% |
| Saturday Night | 30°F | Mostly Clear | 5 to 10 mph W | 1% |
| Sunday | 59°F | Sunny | 5 to 12 mph SW | 0% |
| Sunday Night | 38°F | Partly Cloudy | 10 to 16 mph SW | 0% |
| Monday | 56°F | Sunny | 10 to 20 mph W | 0% |
| Monday Night | 31°F | Partly Cloudy | 8 mph W | 1% |
| Tuesday | 55°F | Mostly Sunny | 6 to 10 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Coleharbor, ND
Last spring frost
May 12
First fall frost
Oct 3
Growing season
143 days
Hardiness zone
4a
Explore more for Coleharbor, ND: full frost dates · planting calendar · North Dakota frost dates
Climate data from the nearest NOAA station, Riverdale, Nd (9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.