S
M
T
W
T
F
S
29
77°
41°
30
86°
36°
31
71°
42°
1
46°
35°
2
44°
35°
3
40°
35°
4
50°
31°
5
66°
36°
6
42°
28°
7
39°
38°
8
66°
34°
9
54°
34°
10
61°
43°
11
71°
57°
12
68°
50°
13
69°
42°
14
58°
35°
15
60°
39°
16
58°
37°
17
63°
41°
18
64°
38°
19
66°
43°
20
65°
44°
21
65°
44°
22
60°
40°
23
56°
39°
24
57°
34°
25
61°
47°
26
70°
46°
27
70°
46°
28
69°
47°
29
70°
47°
30
66°
46°
1
69°
48°
2
71°
47°
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 39° to 71°, with overnight lows between 28° and 57°. 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 Olean. See also: May | June | July.
