S
M
T
W
T
F
S
26
57°
46°
27
74°
44°
28
65°
49°
29
57°
47°
30
56°
42°
1
51°
37°
2
48°
32°
3
63°
47°
4
73°
56°
5
61°
45°
6
59°
37°
7
56°
40°
8
55°
42°
9
60°
40°
10
61°
43°
11
62°
44°
12
64°
44°
13
65°
51°
14
66°
47°
15
68°
48°
16
67°
50°
17
73°
55°
18
71°
55°
19
72°
54°
20
73°
53°
21
72°
50°
22
67°
47°
23
65°
47°
24
67°
48°
25
67°
50°
26
68°
49°
27
68°
49°
28
69°
50°
29
69°
50°
30
70°
55°
31
75°
56°
1
70°
53°
2
72°
54°
3
75°
60°
4
76°
60°
5
77°
61°
6
81°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Gallup
Gallup's May 2026 forecast shows daily high temperatures ranging from 55° to 81°, with overnight lows between 37° and 63°. The average high for May is 68° with an average low of 50°. 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 Gallup. See also: June | July | August.
