S
M
T
W
T
F
S
28
55°
50°
29
65°
50°
30
64°
56°
1
73°
53°
2
75°
43°
3
78°
51°
4
83°
44°
5
83°
40°
6
82°
57°
7
84°
52°
8
86°
47°
9
85°
46°
10
85°
49°
11
87°
56°
12
80°
52°
13
87°
58°
14
85°
53°
15
84°
53°
16
83°
56°
17
84°
53°
18
89°
55°
19
88°
56°
20
86°
56°
21
85°
58°
22
86°
57°
23
82°
49°
24
83°
53°
25
85°
55°
26
87°
55°
27
86°
54°
28
86°
55°
29
88°
56°
30
88°
56°
31
87°
55°
1
77°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Lake McDonald
Lake McDonald's July 2026 forecast shows daily high temperatures ranging from 77° to 89°, with overnight lows between 49° and 58°. The average high for July is 85° with an average low of 54°. 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 Lake McDonald. See also: August | September | October.
