S
M
T
W
T
F
S
27
69°
61°
28
N/A
29
70°
60°
30
75°
59°
1
74°
64°
2
67°
56°
3
61°
53°
4
70°
51°
5
64°
52°
6
64°
50°
7
69°
55°
8
69°
55°
9
69°
51°
10
65°
54°
11
63°
56°
12
68°
62°
13
71°
55°
14
63°
50°
15
61°
52°
16
62°
43°
17
53°
43°
18
58°
48°
19
63°
50°
20
63°
47°
21
59°
46°
22
60°
47°
23
57°
41°
24
52°
44°
25
58°
47°
26
60°
44°
27
57°
37°
28
49°
36°
29
49°
41°
30
52°
45°
31
57°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Niagara-on-the-Lake
Niagara-on-the-Lake's October 2026 forecast shows daily high temperatures ranging from 49° to 71°, with overnight lows between 36° and 62°. The average high for October is 59° 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 Niagara-on-the-Lake. See also: November | December | January.