Casselton, ND Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Casselton, a city in Cass County, North Dakota.
This Afternoon
72°F
Mostly Cloudy
Mostly cloudy. High near 72, with temperatures falling to around 65 in the afternoon. Northeast wind around 13 mph.
7-day forecast for Casselton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Mostly Cloudy | 13 mph NE | 0% |
| Tonight | 51°F | Isolated Rain Showers then Mostly Cloudy | 14 mph NNE | 16% |
| Sunday | 69°F | Mostly Cloudy | 14 mph NE | 0% |
| Sunday Night | 49°F | Mostly Cloudy | 5 to 10 mph ENE | 0% |
| Monday | 67°F | Mostly Sunny | 3 to 8 mph ESE | 0% |
| Monday Night | 41°F | Mostly Clear | 7 mph SE | 0% |
| Tuesday | 68°F | Sunny | 5 to 17 mph SE | 0% |
| Tuesday Night | 44°F | Mostly Clear | 14 mph SSE | 0% |
| Wednesday | 70°F | Mostly Sunny | 14 to 24 mph SSE | 5% |
| Wednesday Night | 51°F | Chance Rain Showers | 15 to 20 mph SSE | 45% |
| Thursday | 72°F | Chance Rain Showers | 14 to 17 mph SSE | 45% |
| Thursday Night | 52°F | Slight Chance Rain Showers then Mostly Cloudy | 7 to 12 mph SSE | 15% |
| Friday | 75°F | Partly Sunny | 7 to 17 mph SSE | 6% |
| Friday Night | 57°F | Partly Cloudy then Slight Chance Rain Showers | 15 to 18 mph SSE | 18% |
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.