S
M
T
W
T
F
S
26
55°
44°
27
69°
38°
28
64°
43°
29
66°
52°
30
71°
51°
1
68°
38°
2
61°
49°
3
64°
39°
4
77°
46°
5
84°
59°
6
70°
60°
7
66°
45°
8
71°
39°
9
77°
47°
10
85°
50°
11
61°
42°
12
73°
39°
13
78°
51°
14
65°
48°
15
75°
50°
16
87°
63°
17
94°
66°
18
92°
67°
19
93°
70°
20
85°
62°
21
73°
59°
22
78°
59°
23
76°
60°
24
77°
57°
25
77°
59°
26
79°
57°
27
80°
61°
28
81°
60°
29
75°
61°
30
81°
62°
31
80°
61°
1
75°
58°
2
75°
57°
3
76°
56°
4
75°
56°
5
77°
63°
6
84°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Coatesville
Coatesville's May 2026 forecast shows daily high temperatures ranging from 65° to 94°, with overnight lows between 48° and 70°. The average high for May is 80° with an average low of 60°. 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 Coatesville. See also: June | July | August.
