S
M
T
W
T
F
S
26
63°
30°
27
53°
31°
28
52°
32°
29
52°
37°
30
39°
30°
1
44°
33°
2
61°
38°
3
60°
39°
4
61°
36°
5
50°
33°
6
58°
39°
7
63°
42°
8
65°
40°
9
67°
43°
10
66°
39°
11
70°
42°
12
60°
39°
13
58°
38°
14
60°
36°
15
64°
40°
16
71°
45°
17
72°
45°
18
73°
46°
19
71°
46°
20
73°
45°
21
73°
46°
22
72°
47°
23
72°
48°
24
65°
47°
25
65°
47°
26
70°
48°
27
73°
48°
28
75°
49°
29
75°
49°
30
71°
48°
31
76°
50°
1
76°
50°
2
75°
49°
3
67°
50°
4
68°
50°
5
69°
47°
6
72°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Calhan
Calhan's May 2026 forecast shows daily high temperatures ranging from 39° to 76°, with overnight lows between 30° and 50°. The average high for May is 65° with an average low of 43°. 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 Calhan. See also: June | July | August.