S
M
T
W
T
F
S
29
64°
37°
30
81°
46°
31
71°
41°
1
42°
38°
2
71°
40°
3
61°
41°
4
58°
40°
5
53°
36°
6
52°
30°
7
44°
36°
8
66°
53°
9
68°
51°
10
60°
40°
11
58°
51°
12
76°
60°
13
72°
54°
14
65°
44°
15
59°
44°
16
55°
39°
17
64°
43°
18
66°
48°
19
61°
40°
20
66°
45°
21
64°
48°
22
64°
47°
23
68°
45°
24
67°
41°
25
61°
47°
26
57°
45°
27
58°
43°
28
68°
43°
29
59°
41°
30
62°
45°
1
66°
45°
2
60°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Union
Union's April 2026 forecast shows daily high temperatures ranging from 44° to 76°, with overnight lows between 30° and 60°. The average high for April is 62° 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 April weather will actually feel in Union. See also: May | June | July.