S
M
T
W
T
F
S
31
86°
68°
1
88°
66°
2
86°
66°
3
81°
55°
4
84°
52°
5
88°
55°
6
88°
59°
7
90°
63°
8
88°
72°
9
83°
67°
10
89°
69°
11
90°
70°
12
92°
71°
13
90°
69°
14
89°
70°
15
85°
68°
16
84°
70°
17
84°
67°
18
81°
69°
19
84°
70°
20
85°
69°
21
88°
68°
22
87°
68°
23
86°
69°
24
88°
70°
25
88°
70°
26
89°
69°
27
90°
70°
28
88°
71°
29
87°
70°
30
89°
71°
1
90°
71°
2
88°
70°
3
88°
71°
4
89°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Saint Louis
Saint Louis's June 2026 forecast shows daily high temperatures ranging from 81° to 92°, with overnight lows between 67° and 71°. The average high for June is 87° with an average low of 70°. 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 Saint Louis. See also: July | August | September.
