S
M
T
W
T
F
S
26
67°
51°
27
62°
46°
28
53°
41°
29
63°
35°
30
64°
41°
1
66°
40°
2
68°
35°
3
79°
52°
4
85°
49°
5
55°
46°
6
60°
43°
7
78°
43°
8
79°
52°
9
82°
48°
10
74°
51°
11
83°
52°
12
86°
59°
13
83°
48°
14
89°
62°
15
95°
68°
16
94°
64°
17
96°
59°
18
74°
45°
19
70°
45°
20
64°
51°
21
68°
52°
22
75°
60°
23
83°
61°
24
86°
60°
25
81°
57°
26
80°
59°
27
82°
58°
28
78°
59°
29
80°
61°
30
81°
58°
31
85°
63°
1
85°
63°
2
82°
62°
3
77°
57°
4
79°
61°
5
82°
65°
6
86°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Beloit
Beloit's May 2026 forecast shows daily high temperatures ranging from 64° to 96°, with overnight lows between 45° and 65°. The average high for May is 80° with an average low of 58°. 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 Beloit. See also: June | July | August.
