S
M
T
W
T
F
S
29
78°
43°
30
79°
60°
31
85°
65°
1
85°
65°
2
84°
63°
3
85°
66°
4
81°
58°
5
71°
46°
6
67°
46°
7
72°
47°
8
72°
49°
9
76°
52°
10
75°
52°
11
78°
54°
12
80°
57°
13
76°
57°
14
78°
56°
15
77°
55°
16
76°
50°
17
78°
55°
18
70°
54°
19
75°
55°
20
77°
56°
21
77°
55°
22
78°
56°
23
79°
56°
24
80°
57°
25
79°
57°
26
80°
56°
27
77°
50°
28
73°
51°
29
80°
57°
30
74°
51°
1
74°
52°
2
74°
54°
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 67° to 85°, with overnight lows between 46° and 66°. The average high for April is 76° with an average low of 54°. 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.