S
M
T
W
T
F
S
26
61°
43°
27
71°
40°
28
72°
48°
29
55°
45°
30
51°
38°
1
43°
35°
2
44°
34°
3
59°
32°
4
69°
57°
5
67°
49°
6
53°
40°
7
52°
36°
8
61°
47°
9
55°
42°
10
58°
47°
11
59°
41°
12
56°
42°
13
60°
44°
14
58°
45°
15
59°
45°
16
63°
49°
17
68°
48°
18
71°
52°
19
67°
51°
20
73°
52°
21
70°
51°
22
66°
44°
23
62°
44°
24
64°
46°
25
64°
47°
26
65°
47°
27
65°
46°
28
66°
46°
29
67°
47°
30
66°
47°
31
72°
56°
1
68°
52°
2
69°
48°
3
69°
56°
4
72°
56°
5
73°
55°
6
78°
58°
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 52° to 78°, with overnight lows between 36° and 58°. 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 Beloit. See also: June | July | August.
