S
M
T
W
T
F
S
26
54°
43°
27
56°
40°
28
51°
35°
29
53°
36°
30
51°
34°
1
53°
34°
2
51°
36°
3
52°
37°
4
53°
36°
5
52°
36°
6
54°
37°
7
55°
38°
8
57°
38°
9
55°
37°
10
54°
38°
11
55°
38°
12
57°
48°
13
61°
43°
14
56°
43°
15
57°
44°
16
66°
45°
17
59°
43°
18
62°
44°
19
63°
51°
20
71°
48°
21
70°
43°
22
61°
42°
23
61°
42°
24
62°
44°
25
65°
46°
26
71°
52°
27
74°
47°
28
71°
51°
29
70°
52°
30
69°
53°
31
67°
45°
1
70°
43°
2
66°
42°
3
63°
44°
4
65°
51°
5
68°
53°
6
70°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in New Toronto
New Toronto's May 2026 forecast shows daily high temperatures ranging from 51° to 74°, with overnight lows between 34° and 53°. The average high for May is 61° with an average low of 43°. 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 New Toronto. See also: June | July | August.