S
M
T
W
T
F
S
31
83°
61°
1
86°
66°
2
81°
62°
3
83°
58°
4
83°
66°
5
85°
67°
6
88°
66°
7
81°
71°
8
86°
70°
9
91°
71°
10
86°
68°
11
78°
61°
12
82°
58°
13
79°
60°
14
72°
55°
15
79°
53°
16
76°
60°
17
84°
59°
18
77°
55°
19
81°
61°
20
81°
62°
21
69°
56°
22
75°
57°
23
75°
59°
24
79°
58°
25
78°
60°
26
81°
64°
27
82°
65°
28
78°
62°
29
81°
61°
30
80°
63°
1
84°
62°
2
85°
64°
3
79°
61°
4
80°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in St. Marys
St. Marys's June 2026 forecast shows daily high temperatures ranging from 69° to 85°, with overnight lows between 55° and 67°. The average high for June is 79° with an average low of 61°. 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. Marys. See also: July | August | September.
