S
M
T
W
T
F
S
29
56°
20°
30
73°
40°
31
81°
54°
1
76°
44°
2
44°
39°
3
68°
39°
4
66°
43°
5
54°
41°
6
51°
37°
7
51°
28°
8
51°
23°
9
58°
26°
10
72°
34°
11
61°
42°
12
60°
31°
13
80°
48°
14
87°
50°
15
88°
56°
16
90°
64°
17
76°
57°
18
74°
49°
19
54°
33°
20
48°
29°
21
51°
24°
22
52°
41°
23
73°
35°
24
64°
47°
25
50°
41°
26
64°
39°
27
72°
41°
28
69°
46°
29
61°
49°
30
57°
41°
1
55°
36°
2
54°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Ulster
Ulster's April 2026 forecast shows daily high temperatures ranging from 54° to 72°, with overnight lows between 36° and 49°. The average high for April is 62° with an average low of 41°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Ulster. See also: May | June | July.