S
M
T
W
T
F
S
28
91°
73°
29
90°
73°
30
91°
72°
1
90°
71°
2
93°
68°
3
92°
69°
4
93°
68°
5
92°
67°
6
88°
65°
7
81°
62°
8
82°
63°
9
83°
68°
10
88°
70°
11
88°
70°
12
87°
69°
13
86°
69°
14
85°
68°
15
86°
66°
16
86°
69°
17
85°
67°
18
86°
67°
19
89°
69°
20
91°
67°
21
85°
63°
22
85°
63°
23
88°
65°
24
91°
70°
25
92°
70°
26
93°
69°
27
92°
70°
28
84°
66°
29
88°
70°
30
92°
71°
31
93°
70°
1
88°
70°
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 81° to 93°, with overnight lows between 62° and 73°. The average high for July is 88° with an average low of 68°. 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.
