Casselton, ND Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Casselton, a city in Cass County, North Dakota.
Tonight
36°F
Cloudy then Chance Light Rain
A chance of rain after midnight. Cloudy. Low around 36, with temperatures rising to around 39 overnight. North wind 16 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Casselton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 36°F | Cloudy then Chance Light Rain | 16 to 22 mph N | 31% |
| Wednesday | 46°F | Chance Light Rain | 25 mph N | 34% |
| Wednesday Night | 30°F | Mostly Cloudy | 16 to 22 mph N | 0% |
| Thursday | 39°F | Mostly Cloudy | 10 to 22 mph N | 0% |
| Thursday Night | 25°F | Mostly Cloudy | 1 to 8 mph E | 0% |
| Friday | 44°F | Mostly Sunny | 1 to 10 mph S | 0% |
| Friday Night | 27°F | Partly Cloudy | 8 mph SSW | 0% |
| Saturday | 55°F | Mostly Sunny | 8 to 15 mph WSW | 9% |
| Saturday Night | 32°F | Partly Cloudy | 10 mph WNW | 4% |
| Sunday | 55°F | Mostly Sunny | 8 to 12 mph SW | 2% |
| Sunday Night | 35°F | Partly Cloudy | 10 mph SSW | 0% |
| Monday | 57°F | Mostly Sunny | 12 to 24 mph W | 1% |
| Monday Night | 33°F | Mostly Clear | 6 to 12 mph WNW | 0% |
| Tuesday | 52°F | Mostly Sunny | 6 to 10 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Casselton (46.896, -97.213). Updated through the day.
Growing snapshot for Casselton
Last spring frost
May 9
First fall frost
Oct 1
Growing season
143 days
Hardiness zone
4a
More local growing data for Casselton: nearby ZIP 58012 weather · frost dates · planting calendar · North Dakota frost dates
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Climate data from the nearest NOAA station, Casselton Agronomy Farm, Nd (5.4 mi from Casselton). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.