S
M
T
W
T
F
S
27
70°
49°
28
71°
50°
29
71°
49°
30
69°
49°
1
69°
47°
2
65°
47°
3
65°
46°
4
67°
46°
5
67°
45°
6
66°
46°
7
66°
45°
8
64°
44°
9
65°
36°
10
57°
36°
11
54°
39°
12
59°
41°
13
62°
40°
14
57°
39°
15
59°
40°
16
61°
39°
17
57°
42°
18
61°
43°
19
62°
38°
20
60°
36°
21
59°
39°
22
52°
34°
23
57°
32°
24
48°
38°
25
50°
37°
26
59°
34°
27
55°
32°
28
49°
29°
29
45°
25°
30
43°
25°
31
41°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Niagara
Niagara's October 2026 forecast shows daily high temperatures ranging from 41° to 71°, with overnight lows between 25° and 50°. The average high for October is 59° 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 Niagara. See also: November | December | January.