S
M
T
W
T
F
S
26
57°
41°
27
69°
38°
28
58°
42°
29
59°
47°
30
63°
47°
1
62°
37°
2
59°
44°
3
59°
38°
4
71°
55°
5
81°
60°
6
70°
49°
7
60°
43°
8
59°
42°
9
63°
47°
10
70°
52°
11
64°
48°
12
65°
49°
13
67°
49°
14
66°
51°
15
70°
51°
16
71°
50°
17
73°
51°
18
77°
56°
19
76°
55°
20
75°
56°
21
76°
56°
22
74°
49°
23
69°
48°
24
68°
49°
25
69°
50°
26
70°
50°
27
69°
49°
28
69°
51°
29
70°
49°
30
70°
52°
31
71°
58°
1
76°
57°
2
72°
54°
3
73°
57°
4
76°
59°
5
76°
56°
6
78°
59°
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 59° to 81°, with overnight lows between 42° and 60°. The average high for May is 71° with an average low of 52°. 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.
