S
M
T
W
T
F
S
26
62°
33°
27
66°
36°
28
61°
47°
29
48°
36°
30
46°
35°
1
46°
32°
2
45°
29°
3
56°
29°
4
72°
46°
5
62°
41°
6
45°
36°
7
47°
32°
8
55°
32°
9
64°
40°
10
54°
35°
11
48°
34°
12
57°
31°
13
54°
39°
14
49°
41°
15
64°
48°
16
71°
50°
17
73°
55°
18
79°
63°
19
74°
48°
20
57°
38°
21
55°
39°
22
58°
44°
23
62°
47°
24
65°
50°
25
67°
52°
26
67°
53°
27
68°
45°
28
63°
50°
29
65°
51°
30
71°
47°
31
62°
42°
1
61°
42°
2
61°
43°
3
63°
42°
4
64°
47°
5
68°
53°
6
74°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Colgan
Colgan's May 2026 forecast shows daily high temperatures ranging from 49° to 79°, with overnight lows between 38° and 63°. The average high for May is 65° with an average low of 48°. 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 Colgan. See also: June | July | August.