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
45°
37°
19
42°
32°
20
42°
33°
21
44°
35°
22
41°
33°
23
42°
31°
24
41°
31°
25
40°
29°
26
42°
30°
27
41°
29°
28
40°
28°
29
42°
29°
30
40°
31°
1
45°
30°
2
41°
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 40° to 45°, with overnight lows between 28° and 37°. The average high for April is 42° with an average low of 31°. 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.
