S
M
T
W
T
F
S
28
60°
50°
29
57°
52°
30
65°
48°
1
60°
43°
2
62°
45°
3
66°
47°
4
69°
43°
5
65°
51°
6
65°
49°
7
67°
46°
8
64°
53°
9
67°
51°
10
70°
48°
11
69°
50°
12
67°
53°
13
66°
53°
14
65°
51°
15
69°
53°
16
68°
55°
17
72°
56°
18
65°
45°
19
65°
46°
20
Hist. Avg.
76°
52°
21
Hist. Avg.
76°
52°
22
Hist. Avg.
76°
52°
23
Hist. Avg.
76°
52°
24
Hist. Avg.
76°
52°
25
Hist. Avg.
76°
52°
26
Hist. Avg.
76°
52°
27
Hist. Avg.
76°
52°
28
Hist. Avg.
76°
52°
29
Hist. Avg.
76°
52°
30
Hist. Avg.
76°
51°
31
Hist. Avg.
76°
51°
1
Hist. Avg.
76°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in Isle Royale National Park
Isle Royale National Park's July 2026 forecast shows daily high temperatures ranging from 57° to 72°, with overnight lows between 43° and 56°. The average high for July is 66° with an average low of 49°. 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 Isle Royale National Park. See also: August | September | October.
