S
M
T
W
T
F
S
29
96°
72°
30
95°
73°
31
90°
76°
1
86°
69°
2
87°
65°
3
88°
64°
4
91°
61°
5
96°
68°
6
87°
73°
7
93°
65°
8
98°
68°
9
96°
69°
10
95°
66°
11
90°
60°
12
85°
60°
13
80°
54°
14
82°
54°
15
89°
58°
16
88°
62°
17
87°
57°
18
89°
63°
19
91°
62°
20
90°
61°
21
88°
59°
22
90°
60°
23
89°
58°
24
82°
58°
25
83°
55°
26
85°
58°
27
84°
60°
28
83°
54°
29
82°
54°
30
83°
55°
1
84°
56°
2
85°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in St. Johns
St. Johns's April 2026 forecast shows daily high temperatures ranging from 80° to 95°, with overnight lows between 54° and 66°. The average high for April is 86° with an average low of 58°. 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. Johns. See also: May | June | July.