S
M
T
W
T
F
S
26
83°
49°
27
87°
50°
28
88°
50°
29
84°
49°
30
77°
46°
31
78°
45°
1
81°
49°
2
88°
50°
3
86°
41°
4
83°
40°
5
81°
47°
6
90°
48°
7
91°
49°
8
89°
44°
9
81°
41°
10
79°
37°
11
78°
37°
12
77°
38°
13
78°
42°
14
81°
36°
15
76°
37°
16
78°
40°
17
80°
43°
18
82°
46°
19
87°
42°
20
76°
43°
21
78°
43°
22
77°
35°
23
74°
33°
24
73°
34°
25
75°
37°
26
76°
40°
27
83°
44°
28
84°
37°
29
74°
39°
30
76°
44°
31
80°
44°
1
83°
45°
2
77°
43°
3
75°
44°
4
80°
42°
5
78°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Seeley Lake
Seeley Lake's August 2026 forecast shows daily high temperatures ranging from 73° to 91°, with overnight lows between 33° and 50°. The average high for August is 81° with an average low of 42°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Seeley Lake. See also: September | October | November.