S
M
T
W
T
F
S
29
51°
23°
30
67°
43°
31
67°
52°
1
58°
36°
2
43°
36°
3
67°
43°
4
65°
44°
5
52°
28°
6
38°
29°
7
31°
20°
8
48°
32°
9
61°
39°
10
62°
45°
11
64°
44°
12
69°
46°
13
56°
40°
14
59°
42°
15
57°
36°
16
58°
32°
17
47°
26°
18
47°
27°
19
49°
30°
20
59°
38°
21
62°
39°
22
61°
38°
23
52°
39°
24
59°
40°
25
64°
41°
26
63°
40°
27
53°
35°
28
54°
32°
29
53°
35°
30
59°
39°
1
55°
36°
2
56°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Sidney
Sidney's April 2026 forecast shows daily high temperatures ranging from 31° to 69°, with overnight lows between 20° and 46°. The average high for April is 56° with an average low of 36°. 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 Sidney. See also: May | June | July.