S
M
T
W
T
F
S
31
98°
66°
1
93°
64°
2
90°
67°
3
82°
63°
4
85°
61°
5
79°
66°
6
81°
61°
7
98°
69°
8
100°
68°
9
91°
70°
10
97°
70°
11
97°
66°
12
83°
67°
13
90°
65°
14
91°
63°
15
83°
61°
16
84°
61°
17
86°
64°
18
90°
65°
19
91°
67°
20
90°
66°
21
85°
68°
22
87°
68°
23
91°
67°
24
92°
68°
25
92°
69°
26
91°
69°
27
92°
68°
28
91°
69°
29
89°
69°
30
89°
68°
1
92°
70°
2
92°
70°
3
93°
69°
4
93°
70°
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 83° to 100°, with overnight lows between 61° and 70°. The average high for June is 91° with an average low of 67°. 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.