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
69°
46°
3
71°
42°
4
76°
49°
5
78°
59°
6
78°
68°
7
76°
51°
8
71°
51°
9
78°
55°
10
79°
59°
11
78°
56°
12
76°
58°
13
78°
56°
14
81°
56°
15
82°
60°
16
81°
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 71° to 84°, with overnight lows between 42° and 68°. The average high for May is 79° 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.
