S
M
T
W
T
F
S
26
59°
39°
27
70°
34°
28
61°
44°
29
60°
47°
30
63°
40°
1
59°
39°
2
53°
37°
3
58°
37°
4
63°
43°
5
68°
47°
6
65°
46°
7
64°
49°
8
61°
43°
9
58°
44°
10
62°
42°
11
61°
47°
12
66°
50°
13
66°
46°
14
65°
44°
15
64°
44°
16
62°
45°
17
63°
44°
18
65°
44°
19
71°
51°
20
69°
46°
21
67°
45°
22
68°
46°
23
67°
45°
24
68°
49°
25
76°
55°
26
73°
48°
27
68°
48°
28
68°
49°
29
71°
52°
30
78°
56°
31
78°
57°
1
77°
57°
2
79°
58°
3
80°
59°
4
80°
57°
5
79°
51°
6
72°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Coopersburg
Coopersburg's May 2026 forecast shows daily high temperatures ranging from 53° to 80°, with overnight lows between 37° and 59°. The average high for May is 67° with an average low of 48°. 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 Coopersburg. See also: June | July | August.
