Casselton, ND Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Casselton, a city in Cass County, North Dakota.
Tonight
52°F
Mostly Cloudy then Patchy Fog
Patchy fog after 1am. Mostly cloudy. Low around 52, with temperatures rising to around 54 overnight. East northeast wind 6 to 10 mph.
7-day forecast for Casselton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Mostly Cloudy then Patchy Fog | 6 to 10 mph ENE | 3% |
| Saturday | 72°F | Patchy Fog then Partly Sunny | 7 to 14 mph NE | 3% |
| Saturday Night | 51°F | Mostly Cloudy | 10 to 15 mph NNE | 0% |
| Sunday | 69°F | Mostly Cloudy | 14 mph NE | 0% |
| Sunday Night | 46°F | Mostly Cloudy | 5 to 10 mph E | 1% |
| Monday | 68°F | Mostly Sunny | 5 to 9 mph ESE | 1% |
| Monday Night | 43°F | Partly Cloudy | 8 mph SE | 0% |
| Tuesday | 70°F | Mostly Sunny | 7 to 20 mph SSE | 0% |
| Tuesday Night | 46°F | Partly Cloudy | 13 to 16 mph SSE | 4% |
| Wednesday | 71°F | Mostly Sunny | 13 to 21 mph SSE | 9% |
| Wednesday Night | 51°F | Mostly Cloudy then Slight Chance Rain Showers | 12 to 17 mph SSE | 17% |
| Thursday | 75°F | Slight Chance Rain Showers then Mostly Sunny | 10 to 14 mph SSE | 17% |
| Thursday Night | 52°F | Partly Cloudy | 8 to 12 mph SSE | 8% |
| Friday | 76°F | Mostly Sunny | 8 to 17 mph SSE | 8% |
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 Sep 19, 2026.