The temperatures in Grand Forks in August are comfortable with low of 15°C and and high up to 27°C.
You can expect about 3 to 8 days of rain in Grand Forks during the month of August. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Grand Forks in August 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.
Temperatures
27° / 15°
Rainy Days
6
Snowy Days
0
Dry Days
25
Rainfall
78
mm
Sun Hours
8.4
Hrs