S
M
T
W
T
F
S
26
63°
37°
27
71°
34°
28
69°
45°
29
52°
41°
30
52°
34°
1
47°
31°
2
48°
30°
3
52°
43°
4
60°
50°
5
55°
40°
6
50°
37°
7
50°
35°
8
51°
38°
9
55°
38°
10
54°
39°
11
56°
41°
12
58°
42°
13
57°
43°
14
60°
43°
15
60°
42°
16
58°
44°
17
59°
46°
18
62°
50°
19
65°
50°
20
66°
49°
21
68°
51°
22
65°
49°
23
62°
50°
24
66°
46°
25
61°
44°
26
62°
52°
27
63°
52°
28
71°
53°
29
66°
52°
30
65°
50°
31
67°
45°
1
63°
47°
2
61°
46°
3
64°
48°
4
64°
47°
5
65°
50°
6
65°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Simcoe
Simcoe's May 2026 forecast shows daily high temperatures ranging from 47° to 71°, with overnight lows between 30° and 53°. The average high for May is 60° with an average low of 45°. 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 Simcoe. See also: June | July | August.
