S
M
T
W
T
F
S
26
65°
28°
27
69°
32°
28
59°
46°
29
54°
39°
30
49°
32°
1
49°
29°
2
47°
31°
3
50°
38°
4
53°
34°
5
54°
41°
6
56°
38°
7
56°
39°
8
55°
39°
9
56°
38°
10
55°
39°
11
56°
46°
12
64°
47°
13
64°
41°
14
57°
37°
15
58°
37°
16
58°
39°
17
60°
42°
18
62°
48°
19
65°
43°
20
60°
41°
21
60°
39°
22
61°
40°
23
61°
42°
24
63°
49°
25
65°
46°
26
63°
43°
27
62°
42°
28
63°
48°
29
69°
51°
30
73°
50°
31
67°
48°
1
69°
51°
2
74°
53°
3
75°
52°
4
75°
49°
5
65°
48°
6
66°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Cavan
Cavan's May 2026 forecast shows daily high temperatures ranging from 47° to 75°, with overnight lows between 29° and 53°. The average high for May is 61° with an average low of 43°. 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 Cavan. See also: June | July | August.
