S
M
T
W
T
F
S
29
68°
44°
30
76°
60°
31
87°
62°
1
87°
61°
2
86°
59°
3
85°
61°
4
87°
65°
5
72°
55°
6
69°
49°
7
81°
48°
8
72°
53°
9
76°
48°
10
83°
46°
11
90°
49°
12
89°
52°
13
87°
56°
14
84°
55°
15
85°
61°
16
87°
62°
17
87°
64°
18
89°
58°
19
66°
46°
20
73°
48°
21
76°
53°
22
82°
57°
23
83°
58°
24
84°
59°
25
79°
59°
26
76°
56°
27
73°
54°
28
75°
52°
29
72°
57°
30
78°
55°
1
72°
53°
2
73°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Atlanta-Decatur
Atlanta-Decatur's April 2026 forecast shows daily high temperatures ranging from 66° to 89°, with overnight lows between 46° and 64°. The average high for April is 78° with an average low of 56°. 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 Atlanta-Decatur. See also: May | June | July.