S
M
T
W
T
F
S
26
68°
38°
27
71°
51°
28
64°
49°
29
59°
35°
30
58°
33°
1
51°
31°
2
58°
27°
3
71°
43°
4
80°
41°
5
57°
41°
6
56°
32°
7
62°
27°
8
69°
47°
9
72°
40°
10
64°
38°
11
64°
41°
12
69°
44°
13
59°
40°
14
67°
47°
15
70°
50°
16
77°
53°
17
77°
54°
18
78°
56°
19
79°
57°
20
79°
58°
21
83°
61°
22
65°
47°
23
67°
50°
24
68°
50°
25
68°
49°
26
69°
48°
27
71°
49°
28
72°
50°
29
74°
55°
30
78°
56°
31
79°
59°
1
78°
56°
2
74°
57°
3
80°
61°
4
81°
62°
5
80°
61°
6
73°
60°
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 59° to 83°, with overnight lows between 38° and 62°. 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 Rockford. See also: June | July | August.
