S
M
T
W
T
F
S
26
63°
39°
27
67°
48°
28
62°
49°
29
58°
38°
30
57°
35°
1
52°
34°
2
57°
29°
3
68°
43°
4
78°
48°
5
61°
41°
6
57°
39°
7
57°
46°
8
64°
43°
9
70°
45°
10
66°
42°
11
64°
44°
12
65°
45°
13
70°
49°
14
67°
45°
15
72°
50°
16
73°
49°
17
72°
47°
18
68°
49°
19
73°
52°
20
73°
52°
21
71°
43°
22
67°
43°
23
67°
44°
24
69°
44°
25
68°
45°
26
69°
46°
27
69°
46°
28
70°
47°
29
70°
51°
30
72°
56°
31
78°
51°
1
72°
52°
2
76°
56°
3
78°
57°
4
81°
57°
5
81°
58°
6
83°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Streamwood
Streamwood's May 2026 forecast shows daily high temperatures ranging from 57° to 83°, with overnight lows between 39° and 59°. The average high for May is 70° with an average low of 48°. 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 Streamwood. See also: June | July | August.
