S
M
T
W
T
F
S
31
78°
44°
1
67°
43°
2
69°
53°
3
69°
49°
4
67°
52°
5
67°
44°
6
66°
43°
7
67°
46°
8
70°
45°
9
68°
47°
10
67°
48°
11
66°
45°
12
71°
49°
13
74°
53°
14
78°
55°
15
80°
56°
16
76°
49°
17
72°
50°
18
69°
55°
19
76°
51°
20
71°
50°
21
77°
53°
22
73°
48°
23
69°
46°
24
71°
47°
25
72°
52°
26
80°
53°
27
83°
58°
28
83°
56°
29
80°
49°
30
75°
58°
1
80°
57°
2
72°
50°
3
73°
49°
4
72°
55°
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 66° to 83°, with overnight lows between 43° and 58°. The average high for June is 73° with an average low of 50°. 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.
