Grafton, ND Weather & Growing Conditions
Overnight
52°F
Mostly Cloudy
Mostly cloudy, with a low around 52. South southeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 52°F | Mostly Cloudy | 3 mph SSE | 1% |
| Saturday | 69°F | Mostly Cloudy then Slight Chance Rain Showers | 0 to 16 mph NNW | 20% |
| Saturday Night | 45°F | Partly Cloudy | 8 to 16 mph NNE | 0% |
| Sunday | 66°F | Mostly Cloudy | 9 mph NE | 0% |
| Sunday Night | 41°F | Partly Cloudy | 1 to 8 mph E | 0% |
| Monday | 69°F | Sunny | 1 to 8 mph SE | 0% |
| Monday Night | 41°F | Mostly Clear | 8 mph SSE | 0% |
| Tuesday | 69°F | Sunny | 8 to 20 mph SSE | 0% |
| Tuesday Night | 46°F | Mostly Clear | 16 mph SSE | 1% |
| Wednesday | 71°F | Mostly Sunny | 15 to 22 mph SSE | 7% |
| Wednesday Night | 50°F | Partly Cloudy | 12 to 16 mph SSE | 12% |
| Thursday | 73°F | Partly Sunny | 10 to 16 mph SSE | 12% |
| Thursday Night | 53°F | Partly Cloudy | 13 mph SSE | 12% |
| Friday | 75°F | Mostly Sunny | 10 to 21 mph S | 8% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Grafton, ND
Last spring frost
May 4
First fall frost
Oct 7
Growing season
156 days
Hardiness zone
4a
Explore more for Grafton, ND: full frost dates · planting calendar · North Dakota frost dates
Climate data from the nearest NOAA station, Grafton, Nd (1.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.