Harman US

Glen Ullin, ND Weather & Growing Conditions

Today
65°F
Patchy Fog then Slight Chance Rain Showers
Patchy fog before 1pm, then a slight chance of rain showers. Cloudy, with a high near 65. Northeast wind 2 to 9 mph. Chance of precipitation is 20%.

7-day forecast

WhenTempForecastWindPrecip
Today 65°F Patchy Fog then Slight Chance Rain Showers 2 to 9 mph NE 24%
Tonight 48°F Rain Showers Likely 12 mph E 64%
Sunday 60°F Rain Showers Likely 12 mph E 65%
Sunday Night 45°F Chance Rain Showers 2 to 8 mph E 33%
Monday 68°F Mostly Sunny 2 to 12 mph SE 7%
Monday Night 46°F Partly Cloudy 10 mph SE 1%
Tuesday 70°F Mostly Sunny 12 to 22 mph SE 2%
Tuesday Night 50°F Mostly Cloudy 14 to 20 mph SE 4%
Wednesday 76°F Partly Sunny 14 to 17 mph SE 7%
Wednesday Night 51°F Partly Cloudy 5 to 14 mph SE 13%
Thursday 78°F Mostly Sunny 5 to 10 mph SE 10%
Thursday Night 52°F Partly Cloudy 9 mph SE 10%
Friday 78°F Mostly Sunny 8 to 18 mph SE 5%
Friday Night 53°F Slight Chance Rain Showers 18 mph SE 17%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Glen Ullin, ND

Last spring frost
May 19
First fall frost
Sep 21
Growing season
123 days
Hardiness zone
4a

Explore more for Glen Ullin, ND: full frost dates · planting calendar · North Dakota frost dates

Climate data from the nearest NOAA station, Hebron, Nd (12.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.