S
M
T
W
T
F
S
27
81°
79°
28
86°
75°
29
85°
77°
30
88°
74°
1
87°
77°
2
86°
78°
3
90°
80°
4
89°
80°
5
89°
79°
6
79°
75°
7
80°
75°
8
80°
76°
9
88°
76°
10
89°
80°
11
84°
75°
12
87°
74°
13
87°
73°
14
87°
77°
15
88°
77°
16
89°
78°
17
80°
68°
18
80°
67°
19
79°
67°
20
79°
66°
21
80°
66°
22
78°
68°
23
78°
66°
24
80°
67°
25
81°
70°
26
80°
70°
27
80°
67°
28
79°
73°
29
84°
73°
30
85°
73°
31
84°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in St. Petersburg
St. Petersburg's October 2026 forecast shows daily high temperatures ranging from 79° to 85°, with overnight lows between 73° and 73°. The average high for October is 83° with an average low of 73°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in St. Petersburg. See also: November | December | January.
