S
M
T
W
T
F
S
26
55°
41°
27
64°
45°
28
64°
50°
29
52°
36°
30
50°
32°
1
45°
32°
2
57°
30°
3
66°
45°
4
77°
42°
5
56°
35°
6
52°
35°
7
53°
38°
8
58°
39°
9
65°
44°
10
56°
38°
11
57°
38°
12
58°
43°
13
61°
43°
14
60°
42°
15
64°
44°
16
65°
47°
17
67°
45°
18
64°
48°
19
68°
50°
20
69°
50°
21
67°
41°
22
61°
41°
23
62°
42°
24
63°
42°
25
63°
43°
26
64°
43°
27
63°
44°
28
64°
43°
29
65°
49°
30
66°
54°
31
73°
49°
1
68°
51°
2
72°
55°
3
75°
55°
4
76°
54°
5
77°
56°
6
76°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Erin
Erin's May 2026 forecast shows daily high temperatures ranging from 52° to 77°, with overnight lows between 35° and 57°. The average high for May is 65° with an average low of 45°. 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 Erin. See also: June | July | August.
