S
M
T
W
T
F
S
26
82°
57°
27
82°
57°
28
71°
61°
29
81°
64°
30
72°
58°
1
64°
55°
2
68°
45°
3
70°
43°
4
76°
51°
5
80°
59°
6
81°
64°
7
74°
48°
8
74°
51°
9
75°
54°
10
79°
61°
11
78°
58°
12
79°
58°
13
81°
59°
14
80°
61°
15
83°
58°
16
77°
59°
17
78°
61°
18
79°
62°
19
82°
63°
20
79°
63°
21
77°
59°
22
79°
57°
23
76°
56°
24
76°
57°
25
78°
59°
26
79°
58°
27
77°
57°
28
78°
58°
29
79°
62°
30
81°
64°
31
80°
65°
1
81°
66°
2
80°
65°
3
80°
65°
4
81°
64°
5
83°
66°
6
84°
67°
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 68° to 84°, with overnight lows between 43° and 67°. The average high for May is 78° 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.
