S
M
T
W
T
F
S
26
45°
27°
27
54°
34°
28
61°
37°
29
62°
38°
30
65°
40°
1
61°
37°
2
65°
41°
3
61°
40°
4
62°
35°
5
58°
35°
6
57°
38°
7
59°
39°
8
61°
37°
9
65°
35°
10
55°
35°
11
56°
32°
12
58°
33°
13
60°
39°
14
58°
40°
15
58°
40°
16
57°
39°
17
58°
34°
18
59°
34°
19
66°
43°
20
61°
42°
21
68°
45°
22
68°
41°
23
59°
38°
24
57°
37°
25
60°
37°
26
61°
38°
27
63°
39°
28
69°
45°
29
67°
46°
30
67°
44°
31
64°
45°
1
73°
41°
2
73°
47°
3
74°
46°
4
69°
47°
5
65°
42°
6
68°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Kalispell
Kalispell's May 2026 forecast shows daily high temperatures ranging from 45° to 74°, with overnight lows between 27° and 47°. The average high for May is 62° with an average low of 39°. 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 Kalispell. See also: June | July | August.
