S
M
T
W
T
F
S
26
49°
30°
27
51°
31°
28
52°
33°
29
60°
29°
30
66°
28°
1
71°
30°
2
72°
36°
3
73°
33°
4
65°
47°
5
59°
33°
6
67°
29°
7
68°
44°
8
70°
38°
9
70°
43°
10
73°
37°
11
74°
41°
12
76°
36°
13
65°
43°
14
58°
45°
15
60°
40°
16
48°
33°
17
53°
32°
18
58°
29°
19
58°
35°
20
60°
37°
21
64°
40°
22
71°
44°
23
76°
47°
24
79°
50°
25
77°
49°
26
64°
46°
27
68°
49°
28
74°
48°
29
70°
45°
30
75°
48°
31
70°
47°
1
75°
48°
2
69°
47°
3
63°
42°
4
67°
44°
5
64°
46°
6
63°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Polson
Polson's May 2026 forecast shows daily high temperatures ranging from 60° to 79°, with overnight lows between 37° and 50°. The average high for May is 69° with an average low of 46°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Polson. See also: June | July | August.
