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
78°
39°
13
70°
46°
14
60°
41°
15
58°
40°
16
53°
35°
17
56°
36°
18
60°
43°
19
62°
40°
20
66°
41°
21
67°
42°
22
70°
41°
23
69°
45°
24
64°
41°
25
66°
42°
26
60°
42°
27
59°
41°
28
60°
40°
29
61°
38°
30
68°
46°
31
62°
43°
1
66°
43°
2
67°
44°
3
67°
45°
4
68°
46°
5
73°
48°
6
74°
49°
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 53° to 78°, with overnight lows between 35° and 49°. The average high for May is 65° 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 May weather will actually feel in Kalispell. See also: June | July | August.
