Harman US

Grafton, ND Weather & Growing Conditions

Tonight
52°F
Mostly Cloudy
Mostly cloudy. Low around 52, with temperatures rising to around 54 overnight. South wind 2 to 8 mph.

7-day forecast

WhenTempForecastWindPrecip
Tonight 52°F Mostly Cloudy 2 to 8 mph S 4%
Saturday 70°F Slight Chance Rain Showers then Mostly Cloudy 1 to 15 mph SW 21%
Saturday Night 47°F Mostly Cloudy 8 to 15 mph NNE 0%
Sunday 68°F Mostly Cloudy 9 mph NE 0%
Sunday Night 44°F Mostly Cloudy 2 to 8 mph E 0%
Monday 69°F Sunny 2 to 9 mph ESE 0%
Monday Night 43°F Mostly Clear 8 mph SSE 0%
Tuesday 70°F Sunny 8 to 18 mph SSE 0%
Tuesday Night 47°F Partly Cloudy 15 mph SSE 2%
Wednesday 71°F Partly Sunny 14 to 20 mph SSE 10%
Wednesday Night 51°F Mostly Cloudy 12 to 16 mph S 13%
Thursday 74°F Mostly Sunny 10 to 14 mph S 12%
Thursday Night 52°F Mostly Clear 8 to 12 mph SSE 9%
Friday 75°F Mostly Sunny 8 to 17 mph S 9%

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.