S
M
T
W
T
F
S
27
67°
49°
28
68°
50°
29
69°
50°
30
69°
49°
1
68°
49°
2
68°
50°
3
66°
50°
4
66°
49°
5
67°
49°
6
66°
48°
7
67°
49°
8
66°
48°
9
64°
44°
10
62°
47°
11
63°
44°
12
64°
45°
13
63°
44°
14
58°
43°
15
60°
43°
16
57°
41°
17
56°
41°
18
60°
43°
19
62°
45°
20
63°
42°
21
62°
42°
22
59°
41°
23
60°
33°
24
59°
38°
25
47°
42°
26
59°
40°
27
58°
34°
28
54°
33°
29
44°
31°
30
45°
28°
31
44°
29°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Wellesley
Wellesley's October 2026 forecast shows daily high temperatures ranging from 44° to 69°, with overnight lows between 28° and 50°. The average high for October is 61° with an average low of 43°. 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 Wellesley. See also: November | December | January.