S
M
T
W
T
F
S
26
61°
39°
27
72°
36°
28
64°
36°
29
63°
48°
30
61°
46°
1
64°
39°
2
59°
45°
3
61°
43°
4
73°
37°
5
82°
45°
6
68°
54°
7
65°
43°
8
61°
48°
9
61°
48°
10
73°
51°
11
63°
45°
12
65°
45°
13
62°
49°
14
67°
50°
15
71°
53°
16
72°
51°
17
74°
53°
18
76°
55°
19
76°
56°
20
74°
52°
21
69°
48°
22
69°
48°
23
70°
49°
24
71°
49°
25
75°
55°
26
78°
56°
27
74°
53°
28
76°
53°
29
72°
50°
30
76°
56°
31
81°
58°
1
80°
59°
2
78°
56°
3
78°
56°
4
82°
60°
5
82°
60°
6
81°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Gillette
Gillette's May 2026 forecast shows daily high temperatures ranging from 61° to 82°, with overnight lows between 43° and 60°. The average high for May is 73° with an average low of 52°. 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.
