Harman US

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

WhenTempForecastWindPrecip
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.