Calvin, ND Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Calvin, a city in Cavalier County, North Dakota.
Overnight
48°F
Mostly Clear
Mostly clear, with a low around 48. West wind around 10 mph.
7-day forecast for Calvin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 48°F | Mostly Clear | 10 mph W | 0% |
| Tuesday | 69°F | Sunny | 10 to 16 mph W | 0% |
| Tuesday Night | 48°F | Mostly Clear | 7 to 13 mph WSW | 0% |
| Wednesday | 78°F | Mostly Sunny | 12 to 18 mph SW | 8% |
| Wednesday Night | 53°F | Partly Cloudy | 9 to 16 mph WSW | 14% |
| Thursday | 80°F | Sunny | 9 to 17 mph W | 1% |
| Thursday Night | 55°F | Mostly Clear | 9 to 14 mph WNW | 4% |
| Friday | 77°F | Sunny | 9 to 14 mph NW | 4% |
| Friday Night | 52°F | Partly Cloudy | 6 to 13 mph N | 6% |
| Saturday | 77°F | Mostly Sunny | 6 to 12 mph NNW | 6% |
| Saturday Night | 52°F | Partly Cloudy | 7 to 12 mph NNE | 11% |
| Sunday | 75°F | Mostly Sunny | 7 to 10 mph N | 11% |
| Sunday Night | 54°F | Chance Rain Showers | 7 to 10 mph NE | 26% |
| Monday | 75°F | Chance Rain Showers then Mostly Sunny | 7 to 10 mph NNE | 26% |
Forecast source: National Weather Service (api.weather.gov) for Calvin (48.852, -98.938). Updated through the day.
Growing snapshot for Calvin
Last spring frost
May 18
First fall frost
Sep 23
Growing season
127 days
Hardiness zone
3b
More local growing data for Calvin: nearby ZIP 58323 weather · frost dates · planting calendar · North Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Hansboro 4 Nne, Nd (22.1 mi from Calvin). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.