S
M
T
W
T
F
S
29
51°
30°
30
71°
36°
31
65°
45°
1
45°
34°
2
42°
32°
3
74°
38°
4
46°
35°
5
48°
34°
6
43°
29°
7
34°
22°
8
44°
24°
9
65°
34°
10
45°
35°
11
51°
33°
12
45°
36°
13
70°
39°
14
75°
50°
15
66°
45°
16
71°
49°
17
63°
48°
18
69°
40°
19
45°
34°
20
39°
30°
21
51°
42°
22
56°
41°
23
58°
42°
24
56°
42°
25
53°
41°
26
53°
40°
27
54°
41°
28
54°
41°
29
55°
40°
30
54°
42°
1
53°
40°
2
54°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Mississauga
Mississauga's April 2026 forecast shows daily high temperatures ranging from 39° to 58°, with overnight lows between 30° and 42°. The average high for April is 53° 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 April weather will actually feel in Mississauga. See also: May | June | July.