S
M
T
W
T
F
S
31
80°
65°
1
85°
66°
2
81°
60°
3
83°
52°
4
86°
58°
5
87°
67°
6
88°
72°
7
89°
74°
8
82°
72°
9
93°
74°
10
97°
77°
11
94°
71°
12
87°
63°
13
87°
67°
14
85°
63°
15
79°
60°
16
80°
63°
17
82°
64°
18
84°
65°
19
88°
66°
20
87°
67°
21
86°
69°
22
83°
69°
23
83°
67°
24
86°
70°
25
89°
70°
26
90°
71°
27
89°
70°
28
85°
64°
29
85°
70°
30
84°
71°
1
84°
71°
2
85°
70°
3
88°
71°
4
84°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in East St. Louis
East St. Louis's June 2026 forecast shows daily high temperatures ranging from 79° to 97°, with overnight lows between 60° and 77°. The average high for June is 86° with an average low of 68°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in East St. Louis. See also: July | August | September.
