S
M
T
W
T
F
S
26
74°
47°
27
69°
49°
28
63°
49°
29
59°
37°
30
61°
38°
1
53°
34°
2
58°
34°
3
69°
47°
4
80°
44°
5
55°
38°
6
57°
35°
7
62°
37°
8
66°
49°
9
76°
41°
10
67°
40°
11
67°
40°
12
76°
49°
13
66°
39°
14
71°
43°
15
76°
55°
16
79°
61°
17
82°
61°
18
74°
63°
19
74°
47°
20
67°
43°
21
68°
49°
22
69°
55°
23
77°
59°
24
77°
55°
25
82°
57°
26
81°
55°
27
89°
59°
28
84°
54°
29
83°
59°
30
83°
54°
31
81°
56°
1
86°
55°
2
86°
57°
3
85°
61°
4
84°
65°
5
80°
63°
6
84°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Streator
Streator's May 2026 forecast shows daily high temperatures ranging from 80° to 89°, with overnight lows between 54° and 65°. The average high for May is 84° with an average low of 58°. 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 Streator. See also: June | July | August.
