S
M
T
W
T
F
S
26
56°
38°
27
58°
39°
28
58°
46°
29
54°
42°
30
55°
42°
1
48°
37°
2
47°
35°
3
57°
35°
4
58°
46°
5
62°
44°
6
50°
37°
7
50°
39°
8
54°
37°
9
57°
41°
10
58°
43°
11
52°
43°
12
50°
40°
13
60°
42°
14
53°
44°
15
67°
47°
16
67°
53°
17
69°
52°
18
76°
62°
19
77°
58°
20
64°
42°
21
56°
45°
22
59°
49°
23
61°
48°
24
67°
56°
25
69°
58°
26
69°
58°
27
70°
57°
28
69°
49°
29
64°
54°
30
70°
51°
31
63°
47°
1
63°
46°
2
62°
46°
3
64°
47°
4
66°
51°
5
69°
56°
6
75°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Old Toronto
Old Toronto's May 2026 forecast shows daily high temperatures ranging from 56° to 77°, with overnight lows between 42° and 62°. The average high for May is 67° with an average low of 52°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Old Toronto. See also: June | July | August.
