S
M
T
W
T
F
S
26
60°
34°
27
65°
34°
28
52°
40°
29
48°
42°
30
47°
43°
1
62°
38°
2
51°
37°
3
55°
40°
4
71°
39°
5
68°
47°
6
59°
51°
7
63°
43°
8
59°
36°
9
56°
36°
10
61°
47°
11
61°
42°
12
59°
37°
13
52°
36°
14
61°
47°
15
60°
48°
16
75°
49°
17
84°
61°
18
64°
51°
19
92°
49°
20
89°
62°
21
66°
47°
22
63°
39°
23
62°
48°
24
55°
48°
25
65°
51°
26
75°
59°
27
80°
53°
28
71°
49°
29
60°
48°
30
64°
45°
31
67°
50°
1
68°
52°
2
64°
50°
3
68°
52°
4
69°
52°
5
70°
50°
6
67°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Westbrook
Westbrook's May 2026 forecast shows daily high temperatures ranging from 55° to 80°, with overnight lows between 45° and 59°. The average high for May is 67° with an average low of 51°. 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 Westbrook. See also: June | July | August.
