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
69°
42°
8
70°
50°
9
76°
45°
10
75°
48°
11
88°
53°
12
80°
53°
13
85°
55°
14
81°
54°
15
74°
53°
16
77°
54°
17
82°
55°
18
78°
56°
19
81°
57°
20
74°
46°
21
66°
47°
22
67°
48°
23
68°
47°
24
69°
48°
25
69°
44°
26
70°
45°
27
76°
49°
28
78°
51°
29
76°
49°
30
73°
48°
31
75°
50°
1
75°
50°
2
80°
52°
3
83°
54°
4
81°
51°
5
71°
49°
6
74°
50°
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 66° to 88°, with overnight lows between 42° and 57°. The average high for May is 76° with an average low of 50°. 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.
