S
M
T
W
T
F
S
27
73°
36°
28
74°
39°
29
74°
40°
30
65°
59°
1
65°
55°
2
62°
38°
3
62°
31°
4
64°
46°
5
58°
32°
6
61°
53°
7
68°
43°
8
63°
38°
9
61°
40°
10
64°
46°
11
73°
49°
12
65°
46°
13
58°
44°
14
57°
41°
15
56°
38°
16
55°
40°
17
54°
41°
18
51°
35°
19
54°
35°
20
49°
32°
21
51°
37°
22
55°
38°
23
58°
39°
24
50°
37°
25
47°
36°
26
46°
34°
27
45°
30°
28
49°
38°
29
56°
40°
30
55°
40°
31
56°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in St. Helen
St. Helen's October 2026 forecast shows daily high temperatures ranging from 45° to 73°, with overnight lows between 30° and 53°. The average high for October is 56° with an average low of 39°. 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. Helen. See also: November | December | January.
