S
M
T
W
T
F
S
26
55°
41°
27
55°
43°
28
54°
39°
29
54°
34°
30
50°
32°
1
54°
37°
2
66°
37°
3
70°
46°
4
59°
43°
5
50°
34°
6
45°
30°
7
59°
25°
8
70°
32°
9
59°
43°
10
57°
36°
11
68°
32°
12
68°
50°
13
73°
41°
14
79°
41°
15
84°
54°
16
77°
46°
17
70°
52°
18
59°
52°
19
52°
41°
20
59°
36°
21
64°
37°
22
55°
46°
23
63°
45°
24
82°
59°
25
84°
62°
26
85°
62°
27
85°
58°
28
85°
59°
29
82°
61°
30
78°
57°
31
75°
56°
1
78°
58°
2
81°
60°
3
81°
60°
4
80°
60°
5
82°
59°
6
75°
55°
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 75° to 85°, with overnight lows between 55° and 62°. The average high for May is 81° with an average low of 59°. 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.
