S
M
T
W
T
F
S
31
77°
40°
1
78°
46°
2
79°
41°
3
83°
44°
4
85°
49°
5
82°
60°
6
83°
63°
7
80°
53°
8
88°
52°
9
81°
68°
10
88°
66°
11
85°
68°
12
74°
62°
13
82°
59°
14
71°
52°
15
72°
47°
16
75°
56°
17
64°
53°
18
69°
57°
19
73°
55°
20
74°
54°
21
73°
49°
22
76°
47°
23
76°
51°
24
70°
58°
25
75°
52°
26
74°
55°
27
79°
55°
28
82°
63°
29
90°
66°
30
89°
67°
1
87°
64°
2
83°
63°
3
81°
61°
4
82°
60°
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 70° to 90°, with overnight lows between 47° and 67°. The average high for June is 80° with an average low of 59°. 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.
