S
M
T
W
T
F
S
26
52°
37°
27
52°
36°
28
61°
36°
29
57°
41°
30
46°
37°
1
61°
34°
2
70°
39°
3
73°
50°
4
72°
46°
5
46°
32°
6
39°
32°
7
68°
43°
8
70°
43°
9
75°
48°
10
68°
46°
11
88°
46°
12
77°
57°
13
88°
54°
14
88°
64°
15
82°
55°
16
75°
59°
17
64°
43°
18
43°
37°
19
48°
36°
20
55°
39°
21
70°
41°
22
64°
41°
23
75°
43°
24
82°
50°
25
82°
57°
26
79°
54°
27
73°
53°
28
79°
52°
29
80°
52°
30
81°
57°
31
71°
53°
1
78°
53°
2
77°
54°
3
77°
56°
4
78°
55°
5
81°
57°
6
83°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Westminster
Westminster's May 2026 forecast shows daily high temperatures ranging from 71° to 83°, with overnight lows between 52° and 58°. The average high for May is 78° with an average low of 55°. 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 Westminster. See also: June | July | August.
