Arthur, ND Weather & Growing Conditions
Tonight
35°F
Chance Light Rain
A chance of rain after 9pm. Cloudy. Low around 35, with temperatures rising to around 38 overnight. North wind 17 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 35°F | Chance Light Rain | 17 to 23 mph N | 28% |
| Wednesday | 46°F | Chance Light Rain then Cloudy | 26 mph N | 29% |
| Wednesday Night | 30°F | Mostly Cloudy | 17 to 23 mph N | 0% |
| Thursday | 39°F | Mostly Cloudy | 10 to 22 mph N | 0% |
| Thursday Night | 24°F | Mostly Cloudy | 1 to 8 mph ENE | 0% |
| Friday | 44°F | Mostly Sunny | 1 to 13 mph S | 0% |
| Friday Night | 27°F | Partly Cloudy | 8 mph SSW | 0% |
| Saturday | 54°F | Mostly Sunny | 9 to 16 mph WSW | 10% |
| Saturday Night | 32°F | Partly Cloudy | 12 mph WNW | 5% |
| Sunday | 54°F | Mostly Sunny | 12 mph SW | 2% |
| Sunday Night | 35°F | Partly Cloudy | 12 mph SSW | 0% |
| Monday | 57°F | Mostly Sunny | 13 to 24 mph W | 1% |
| Monday Night | 33°F | Mostly Clear | 7 to 13 mph WNW | 0% |
| Tuesday | 51°F | Mostly Sunny | 7 to 10 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Arthur, ND
Last spring frost
May 9
First fall frost
Oct 1
Growing season
143 days
Hardiness zone
4a
Explore more for Arthur, ND: full frost dates · planting calendar · North Dakota frost dates
Climate data from the nearest NOAA station, Casselton Agronomy Farm, Nd (15.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.