S
M
T
W
T
F
S
31
78°
56°
1
76°
62°
2
78°
56°
3
80°
56°
4
82°
58°
5
82°
59°
6
85°
66°
7
88°
66°
8
81°
70°
9
82°
71°
10
87°
73°
11
89°
70°
12
86°
63°
13
83°
65°
14
79°
62°
15
78°
58°
16
74°
59°
17
76°
61°
18
78°
64°
19
82°
66°
20
81°
65°
21
82°
63°
22
79°
66°
23
79°
65°
24
81°
65°
25
84°
67°
26
85°
68°
27
82°
66°
28
80°
61°
29
79°
61°
30
80°
64°
1
83°
68°
2
81°
68°
3
85°
67°
4
80°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Petersburg
Petersburg's June 2026 forecast shows daily high temperatures ranging from 74° to 89°, with overnight lows between 58° and 73°. The average high for June is 81° with an average low of 65°. 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 Petersburg. See also: July | August | September.