Calvin, ND Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Calvin, a city in Cavalier County, North Dakota.
This Afternoon
49°F
Mostly Sunny
Mostly sunny. High near 49, with temperatures falling to around 44 in the afternoon. North wind around 15 mph.
7-day forecast for Calvin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 49°F | Mostly Sunny | 15 mph N | 0% |
| Tonight | 26°F | Mostly Cloudy then Patchy Fog | 16 mph N | 0% |
| Thursday | 38°F | Patchy Fog then Mostly Cloudy | 3 to 15 mph NE | 0% |
| Thursday Night | 19°F | Partly Cloudy | 3 to 13 mph SSE | 0% |
| Friday | 46°F | Mostly Sunny | 10 to 15 mph SSW | 0% |
| Friday Night | 27°F | Partly Cloudy | 10 mph SSW | 0% |
| Saturday | 54°F | Mostly Sunny | 12 to 18 mph WSW | 1% |
| Saturday Night | 28°F | Partly Cloudy | 5 to 14 mph W | 1% |
| Sunday | 53°F | Mostly Sunny | 5 to 13 mph SW | 0% |
| Sunday Night | 36°F | Mostly Cloudy | 14 mph SW | 0% |
| Monday | 55°F | Mostly Sunny | 13 to 22 mph W | 0% |
| Monday Night | 29°F | Partly Cloudy | 7 to 13 mph WNW | 1% |
| Tuesday | 50°F | Mostly Sunny | 7 to 10 mph W | 0% |
| Tuesday Night | 29°F | Partly Cloudy | 7 mph SW | 1% |
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 Nov 5, 2026.