S
M
T
W
T
F
S
29
77°
39°
30
90°
37°
31
76°
45°
1
48°
43°
2
54°
35°
3
50°
33°
4
51°
28°
5
66°
36°
6
51°
31°
7
52°
45°
8
75°
39°
9
60°
40°
10
61°
41°
11
56°
38°
12
61°
40°
13
70°
44°
14
72°
47°
15
67°
45°
16
66°
44°
17
66°
46°
18
69°
48°
19
70°
49°
20
71°
49°
21
71°
50°
22
72°
50°
23
72°
49°
24
70°
41°
25
59°
36°
26
57°
36°
27
58°
37°
28
58°
42°
29
61°
42°
30
60°
44°
1
65°
49°
2
71°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Ithaca
Ithaca's April 2026 forecast shows daily high temperatures ranging from 48° to 75°, with overnight lows between 28° and 50°. The average high for April is 63° with an average low of 42°. 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 Ithaca. See also: May | June | July.