S
M
T
W
T
F
S
29
42°
20°
30
30°
21°
31
30°
20°
1
37°
15°
2
39°
29°
3
44°
29°
4
45°
31°
5
42°
20°
6
29°
16°
7
33°
20°
8
42°
29°
9
40°
26°
10
46°
32°
11
52°
32°
12
45°
36°
13
42°
31°
14
51°
33°
15
62°
34°
16
36°
19°
17
28°
16°
18
34°
16°
19
38°
20°
20
62°
31°
21
66°
34°
22
74°
53°
23
77°
34°
24
54°
34°
25
49°
33°
26
50°
36°
27
47°
32°
28
45°
32°
29
50°
34°
30
49°
32°
1
51°
34°
2
53°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Brockville
Brockville's April 2026 forecast shows daily high temperatures ranging from 45° to 77°, with overnight lows between 32° and 53°. The average high for April is 54° with an average low of 36°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Brockville. See also: May | June | July.
