S
M
T
W
T
F
S
27
65°
53°
28
64°
51°
29
59°
44°
30
72°
44°
1
67°
60°
2
66°
47°
3
61°
37°
4
68°
37°
5
58°
37°
6
57°
43°
7
63°
50°
8
65°
44°
9
60°
45°
10
66°
53°
11
70°
52°
12
62°
46°
13
58°
40°
14
55°
41°
15
57°
40°
16
60°
43°
17
56°
43°
18
55°
40°
19
54°
37°
20
49°
31°
21
49°
34°
22
54°
38°
23
57°
38°
24
58°
40°
25
54°
39°
26
51°
37°
27
49°
36°
28
47°
32°
29
54°
41°
30
58°
40°
31
58°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Brockville
Brockville's October 2026 forecast shows daily high temperatures ranging from 47° to 70°, with overnight lows between 31° and 53°. The average high for October is 57° with an average low of 41°. 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 Brockville. See also: November | December | January.
