S
M
T
W
T
F
S
26
54°
40°
27
66°
40°
28
64°
41°
29
62°
45°
30
58°
46°
1
64°
42°
2
59°
46°
3
58°
42°
4
71°
48°
5
77°
51°
6
66°
53°
7
62°
46°
8
60°
43°
9
64°
48°
10
68°
50°
11
60°
47°
12
65°
40°
13
68°
46°
14
65°
51°
15
65°
47°
16
77°
46°
17
87°
62°
18
84°
62°
19
94°
70°
20
87°
56°
21
62°
46°
22
67°
50°
23
57°
50°
24
60°
52°
25
66°
55°
26
71°
58°
27
74°
57°
28
72°
56°
29
73°
57°
30
74°
59°
31
78°
61°
1
80°
56°
2
69°
54°
3
67°
54°
4
68°
58°
5
73°
57°
6
73°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Scarborough
Scarborough's May 2026 forecast shows daily high temperatures ranging from 57° to 94°, with overnight lows between 46° and 70°. The average high for May is 72° with an average low of 56°. 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 Scarborough. See also: June | July | August.