S
M
T
W
T
F
S
29
37°
24°
30
36°
33°
31
40°
27°
1
41°
21°
2
40°
26°
3
40°
27°
4
34°
29°
5
37°
27°
6
42°
20°
7
42°
36°
8
47°
35°
9
48°
33°
10
47°
30°
11
44°
27°
12
41°
33°
13
45°
31°
14
47°
34°
15
46°
31°
16
53°
31°
17
45°
28°
18
47°
31°
19
53°
39°
20
51°
33°
21
54°
39°
22
41°
35°
23
42°
36°
24
43°
36°
25
41°
34°
26
41°
34°
27
43°
29°
28
42°
30°
29
42°
31°
30
44°
33°
1
43°
31°
2
44°
30°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Port O'Brien
Port O'Brien's April 2026 forecast shows daily high temperatures ranging from 41° to 44°, with overnight lows between 29° and 36°. The average high for April is 42° with an average low of 33°. 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 Port O'Brien. See also: May | June | July.
