S
M
T
W
T
F
S
27
59°
49°
28
N/A
29
58°
44°
30
64°
44°
1
62°
42°
2
56°
44°
3
59°
46°
4
58°
51°
5
56°
47°
6
60°
53°
7
56°
46°
8
58°
43°
9
55°
47°
10
50°
41°
11
47°
41°
12
50°
44°
13
44°
36°
14
46°
35°
15
56°
41°
16
54°
41°
17
53°
43°
18
50°
37°
19
51°
34°
20
51°
32°
21
N/A
22
52°
41°
23
52°
47°
24
53°
47°
25
54°
50°
26
54°
45°
27
51°
43°
28
47°
39°
29
43°
33°
30
40°
31°
31
47°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Saint Petersburg
Saint Petersburg's October 2026 forecast shows daily high temperatures ranging from 40° to 54°, with overnight lows between 31° and 50°. The average high for October is 49° with an average low of 42°. 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 Saint Petersburg. See also: November | December | January.