The temperatures in Duluth in July are comfortable with low of 14°C and and high up to 26°C.
You can expect about 3 to 8 days of rain in Duluth during the month of July. 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 Duluth in July 2025.
If you’re planning to visit Duluth in the near future, we highly recommend that you review the 14 day weather forecast for Duluth before you arrive.
Temperatures
26° / 14°
Rainy Days
4
Snowy Days
0
Dry Days
27
Rainfall
56
mm
Sun Hours
10.5
Hrs
