S
M
T
W
T
F
S
31
46°
38°
1
48°
39°
2
48°
39°
3
50°
38°
4
51°
39°
5
52°
39°
6
50°
40°
7
52°
41°
8
51°
40°
9
50°
40°
10
52°
41°
11
53°
38°
12
52°
37°
13
45°
39°
14
47°
39°
15
50°
40°
16
50°
42°
17
54°
41°
18
54°
41°
19
53°
42°
20
54°
42°
21
54°
44°
22
55°
43°
23
55°
43°
24
56°
42°
25
56°
43°
26
55°
44°
27
57°
43°
28
56°
41°
29
56°
44°
30
52°
41°
1
54°
44°
2
55°
46°
3
54°
44°
4
52°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in St. Lewis
St. Lewis's June 2026 forecast shows daily high temperatures ranging from 45° to 57°, with overnight lows between 37° and 46°. The average high for June is 52° with an average low of 41°. 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. Lewis. See also: July | August | September.
