S
M
T
W
T
F
S
27
54°
44°
28
54°
45°
29
53°
43°
30
53°
43°
1
56°
46°
2
59°
46°
3
57°
47°
4
58°
46°
5
58°
46°
6
57°
45°
7
54°
42°
8
53°
43°
9
50°
44°
10
54°
43°
11
51°
43°
12
50°
42°
13
49°
40°
14
48°
37°
15
47°
35°
16
47°
36°
17
48°
38°
18
47°
40°
19
53°
40°
20
50°
35°
21
46°
40°
22
47°
40°
23
45°
34°
24
44°
34°
25
45°
34°
26
46°
33°
27
44°
34°
28
45°
35°
29
45°
35°
30
44°
36°
31
46°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in St. John's
St. John's's October 2026 forecast shows daily high temperatures ranging from 44° to 59°, with overnight lows between 33° and 47°. The average high for October is 50° with an average low of 40°. 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. John's. See also: November | December | January.