S
M
T
W
T
F
S
31
85°
67°
1
85°
67°
2
86°
68°
3
87°
68°
4
87°
67°
5
85°
68°
6
86°
69°
7
85°
68°
8
86°
64°
9
88°
69°
10
85°
64°
11
84°
69°
12
88°
71°
13
90°
65°
14
85°
63°
15
82°
63°
16
82°
65°
17
83°
64°
18
84°
68°
19
88°
64°
20
86°
64°
21
83°
66°
22
84°
66°
23
85°
67°
24
86°
65°
25
84°
66°
26
85°
65°
27
86°
66°
28
85°
65°
29
84°
66°
30
85°
67°
1
87°
70°
2
90°
71°
3
89°
70°
4
88°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in St. Louis
St. Louis's June 2026 forecast shows daily high temperatures ranging from 82° to 90°, with overnight lows between 63° and 72°. The average high for June is 86° with an average low of 67°. 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 St. Louis. See also: July | August | September.
