S
M
T
W
T
F
S
27
78°
45°
28
77°
45°
29
70°
51°
30
70°
51°
1
69°
52°
2
70°
49°
3
69°
43°
4
68°
46°
5
69°
49°
6
69°
48°
7
69°
41°
8
72°
40°
9
Hist. Avg.
69°
44°
10
Hist. Avg.
69°
43°
11
Hist. Avg.
68°
43°
12
Hist. Avg.
68°
42°
13
Hist. Avg.
68°
42°
14
Hist. Avg.
68°
41°
15
Hist. Avg.
67°
41°
16
Hist. Avg.
67°
40°
17
Hist. Avg.
67°
40°
18
Hist. Avg.
66°
40°
19
Hist. Avg.
66°
39°
20
Hist. Avg.
66°
39°
21
Hist. Avg.
66°
38°
22
Hist. Avg.
66°
38°
23
Hist. Avg.
65°
37°
24
Hist. Avg.
65°
37°
25
Hist. Avg.
65°
37°
26
Hist. Avg.
64°
36°
27
Hist. Avg.
64°
36°
28
Hist. Avg.
64°
36°
29
Hist. Avg.
64°
35°
30
Hist. Avg.
64°
35°
31
Hist. Avg.
63°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Williamsville
Williamsville's October 2026 forecast shows daily high temperatures ranging from 68° to 78°, with overnight lows between 40° and 52°. The average high for October is 71° with an average low of 47°. 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 Williamsville. See also: November | December | January.