S
M
T
W
T
F
S
29
27°
12°
30
35°
26°
31
36°
27°
1
29°
20°
2
31°
18°
3
31°
22°
4
33°
24°
5
38°
24°
6
40°
31°
7
33°
24°
8
36°
20°
9
41°
30°
10
43°
32°
11
43°
31°
12
38°
23°
13
43°
30°
14
44°
36°
15
49°
28°
16
42°
25°
17
47°
40°
18
51°
40°
19
53°
36°
20
45°
30°
21
49°
38°
22
41°
34°
23
42°
33°
24
43°
34°
25
43°
33°
26
44°
35°
27
44°
35°
28
45°
33°
29
43°
32°
30
44°
31°
1
45°
33°
2
44°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in St. John's Bay
St. John's Bay's April 2026 forecast shows daily high temperatures ranging from 36° to 53°, with overnight lows between 20° and 40°. The average high for April is 44° with an average low of 32°. 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 St. John's Bay. See also: May | June | July.
