Click on a day for an hourly weather forecast
The temperatures in Grand Forks in May are quite cold with temperatures between 8°C and 19°C, warm clothes are a must.
You can expect rain for roughly half of the month of May in Grand Forks. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Grand Forks in May 2025.
If you’re planning to visit Grand Forks in the near future, we highly recommend that you review the 14 day weather forecast for Grand Forks before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -9° / -18° | 7 | 21 | 3 | 18 mm | Awful | Grand Forks in January |
| February | -8° / -17° | 5 | 20 | 2 | 16 mm | Awful | Grand Forks in February |
| March | 1° / -8° | 5 | 21 | 4 | 35 mm | Awful | Grand Forks in March |
| April | 9° / 0° | 6 | 22 | 2 | 58 mm | Bad | Grand Forks in April |
| May | 19° / 8° | 8 | 23 | 0 | 96 mm | Ok | Grand Forks in May |
| June | 24° / 14° | 8 | 22 | 0 | 112 mm | Good | Grand Forks in June |
| July | 27° / 16° | 6 | 25 | 0 | 81 mm | Perfect | Grand Forks in July |
| August | 27° / 15° | 6 | 25 | 0 | 78 mm | Perfect | Grand Forks in August |
| September | 22° / 11° | 5 | 25 | 0 | 63 mm | Good | Grand Forks in September |
| October | 12° / 4° | 5 | 25 | 1 | 59 mm | Ok | Grand Forks in October |
| November | 2° / -5° | 6 | 22 | 2 | 23 mm | Awful | Grand Forks in November |
| December | -7° / -14° | 8 | 20 | 3 | 31 mm | Awful | Grand Forks in December |