S
M
T
W
T
F
S
26
71°
53°
27
71°
47°
28
61°
43°
29
63°
45°
30
57°
41°
1
52°
37°
2
59°
39°
3
61°
41°
4
63°
45°
5
64°
46°
6
81°
57°
7
61°
42°
8
61°
42°
9
62°
43°
10
62°
46°
11
65°
53°
12
72°
53°
13
68°
49°
14
63°
47°
15
63°
45°
16
64°
45°
17
64°
47°
18
65°
45°
19
66°
45°
20
65°
47°
21
67°
46°
22
70°
56°
23
72°
50°
24
69°
47°
25
67°
47°
26
67°
48°
27
68°
50°
28
69°
50°
29
70°
55°
30
70°
54°
31
71°
56°
1
74°
55°
2
77°
57°
3
80°
60°
4
81°
59°
5
84°
61°
6
76°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Rockford
Rockford's May 2026 forecast shows daily high temperatures ranging from 52° to 84°, with overnight lows between 37° and 62°. The average high for May is 68° with an average low of 49°. 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 Rockford. See also: June | July | August.
