S
M
T
W
T
F
S
26
85°
49°
27
85°
44°
28
53°
45°
29
85°
44°
30
89°
50°
31
89°
46°
1
93°
49°
2
78°
49°
3
74°
48°
4
82°
50°
5
89°
52°
6
93°
55°
7
94°
58°
8
92°
57°
9
86°
58°
10
88°
59°
11
86°
58°
12
87°
59°
13
87°
60°
14
88°
58°
15
83°
53°
16
86°
58°
17
86°
58°
18
86°
57°
19
87°
59°
20
86°
59°
21
85°
58°
22
84°
57°
23
84°
56°
24
82°
52°
25
73°
50°
26
82°
56°
27
84°
57°
28
83°
57°
29
84°
55°
30
79°
56°
31
80°
57°
1
79°
55°
2
70°
53°
3
71°
51°
4
76°
54°
5
80°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Polson
Polson's August 2026 forecast shows daily high temperatures ranging from 70° to 94°, with overnight lows between 48° and 60°. The average high for August is 83° with an average low of 56°. 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 Polson. See also: September | October | November.
