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
N/A
9
69°
47°
10
69°
56°
11
67°
58°
12
68°
60°
13
67°
46°
14
59°
46°
15
62°
55°
16
67°
51°
17
59°
46°
18
56°
46°
19
61°
45°
20
60°
45°
21
59°
42°
22
54°
43°
23
52°
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
*Temporarily Unavailable
October Weather in Niagara-on-the-Lake
Niagara-on-the-Lake's October 2026 forecast shows daily high temperatures ranging from 49° to 69°, with overnight lows between 36° and 60°. The average high for October is 59° with an average low of 46°. 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.