S
M
T
W
T
F
S
26
63°
43°
27
57°
39°
28
55°
39°
29
59°
39°
30
64°
46°
1
63°
52°
2
61°
48°
3
55°
44°
4
57°
45°
5
54°
41°
6
54°
40°
7
55°
40°
8
53°
42°
9
54°
41°
10
55°
40°
11
56°
44°
12
56°
41°
13
57°
43°
14
57°
43°
15
56°
42°
16
56°
43°
17
57°
42°
18
56°
46°
19
56°
45°
20
57°
44°
21
56°
46°
22
57°
45°
23
57°
47°
24
58°
47°
25
57°
46°
26
58°
43°
27
57°
43°
28
57°
42°
29
58°
45°
30
59°
47°
31
58°
46°
1
58°
47°
2
59°
45°
3
62°
48°
4
62°
48°
5
63°
47°
6
62°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Castlefinn
Castlefinn's May 2026 forecast shows daily high temperatures ranging from 53° to 63°, with overnight lows between 40° and 49°. The average high for May is 57° with an average low of 44°. 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 Castlefinn. See also: June | July | August.
