S
M
T
W
T
F
S
26
61°
39°
27
72°
36°
28
64°
36°
29
63°
48°
30
61°
46°
1
N/A
2
59°
40°
3
58°
39°
4
68°
47°
5
80°
59°
6
72°
52°
7
66°
44°
8
61°
43°
9
62°
45°
10
67°
52°
11
69°
50°
12
69°
49°
13
66°
51°
14
68°
50°
15
71°
52°
16
77°
56°
17
76°
55°
18
78°
55°
19
78°
54°
20
77°
56°
21
76°
54°
22
75°
49°
23
69°
48°
24
69°
49°
25
70°
49°
26
71°
51°
27
71°
49°
28
72°
50°
29
71°
51°
30
71°
50°
31
73°
58°
1
77°
57°
2
74°
52°
3
74°
56°
4
79°
59°
5
76°
56°
6
76°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Gillette
Gillette's May 2026 forecast shows daily high temperatures ranging from 58° to 80°, with overnight lows between 39° and 59°. The average high for May is 71° with an average low of 51°. 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 Gillette. See also: June | July | August.
