S
M
T
W
T
F
S
26
58°
41°
27
66°
42°
28
62°
45°
29
58°
48°
30
60°
47°
1
62°
47°
2
64°
51°
3
60°
46°
4
66°
50°
5
66°
52°
6
60°
54°
7
66°
50°
8
66°
48°
9
61°
51°
10
65°
51°
11
63°
49°
12
65°
46°
13
66°
49°
14
66°
53°
15
68°
50°
16
71°
50°
17
85°
59°
18
80°
62°
19
80°
61°
20
93°
64°
21
68°
56°
22
67°
54°
23
58°
50°
24
60°
56°
25
71°
61°
26
77°
64°
27
82°
63°
28
76°
60°
29
73°
55°
30
74°
60°
31
75°
62°
1
79°
66°
2
76°
64°
3
76°
64°
4
77°
61°
5
82°
67°
6
82°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Richmond Hill
Richmond Hill's May 2026 forecast shows daily high temperatures ranging from 58° to 82°, with overnight lows between 50° and 67°. The average high for May is 74° with an average low of 61°. 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 Richmond Hill. See also: June | July | August.
