S
M
T
W
T
F
S
29
66°
31°
30
75°
57°
31
81°
63°
1
80°
54°
2
81°
53°
3
78°
67°
4
81°
51°
5
54°
35°
6
60°
31°
7
49°
34°
8
63°
48°
9
71°
51°
10
75°
53°
11
74°
53°
12
77°
60°
13
74°
57°
14
72°
52°
15
72°
51°
16
69°
49°
17
66°
48°
18
64°
43°
19
71°
50°
20
71°
51°
21
72°
52°
22
72°
52°
23
71°
50°
24
70°
47°
25
63°
43°
26
62°
50°
27
66°
46°
28
66°
45°
29
63°
41°
30
63°
45°
1
65°
47°
2
65°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Olean
Olean's April 2026 forecast shows daily high temperatures ranging from 49° to 77°, with overnight lows between 31° and 60°. The average high for April is 67° with an average low of 47°. 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 Olean. See also: May | June | July.
