S
M
T
W
T
F
S
28
72°
54°
29
67°
54°
30
68°
54°
1
67°
58°
2
68°
55°
3
67°
51°
4
68°
57°
5
70°
58°
6
72°
61°
7
77°
59°
8
70°
57°
9
70°
60°
10
72°
62°
11
79°
62°
12
78°
61°
13
74°
61°
14
78°
63°
15
77°
62°
16
73°
58°
17
71°
56°
18
72°
60°
19
72°
57°
20
71°
57°
21
72°
59°
22
74°
63°
23
80°
64°
24
81°
65°
25
80°
62°
26
73°
60°
27
80°
62°
28
81°
59°
29
80°
58°
30
77°
55°
31
74°
56°
1
72°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Duluth
Duluth's July 2026 forecast shows daily high temperatures ranging from 67° to 81°, with overnight lows between 51° and 65°. The average high for July is 74° with an average low of 59°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Duluth. See also: August | September | October.
