S
M
T
W
T
F
S
26
65°
41°
27
73°
36°
28
68°
39°
29
67°
48°
30
60°
46°
1
63°
47°
2
55°
35°
3
55°
39°
4
66°
43°
5
74°
51°
6
64°
44°
7
62°
40°
8
56°
37°
9
60°
42°
10
64°
42°
11
63°
41°
12
63°
44°
13
62°
45°
14
64°
42°
15
66°
44°
16
67°
44°
17
67°
42°
18
68°
49°
19
75°
49°
20
74°
48°
21
71°
50°
22
74°
46°
23
68°
46°
24
69°
47°
25
69°
43°
26
70°
47°
27
69°
48°
28
70°
52°
29
76°
52°
30
75°
51°
31
75°
48°
1
72°
45°
2
70°
45°
3
70°
46°
4
71°
46°
5
71°
47°
6
72°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Ulster
Ulster's May 2026 forecast shows daily high temperatures ranging from 55° to 76°, with overnight lows between 35° and 52°. The average high for May is 68° 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 Ulster. See also: June | July | August.
