S
M
T
W
T
F
S
31
85°
61°
1
84°
60°
2
85°
61°
3
83°
62°
4
79°
65°
5
81°
64°
6
83°
68°
7
87°
62°
8
85°
62°
9
81°
69°
10
84°
69°
11
88°
70°
12
82°
70°
13
83°
69°
14
82°
70°
15
83°
68°
16
83°
68°
17
88°
66°
18
83°
64°
19
83°
67°
20
87°
72°
21
91°
66°
22
85°
64°
23
83°
63°
24
83°
65°
25
84°
64°
26
84°
64°
27
85°
70°
28
88°
68°
29
85°
65°
30
86°
67°
1
89°
69°
2
86°
66°
3
85°
66°
4
85°
67°
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 79° to 91°, with overnight lows between 60° and 72°. The average high for June is 85° with an average low of 66°. 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.
