S
M
T
W
T
F
S
29
57°
26°
30
67°
48°
31
73°
56°
1
58°
43°
2
76°
43°
3
76°
58°
4
80°
52°
5
62°
36°
6
47°
32°
7
35°
23°
8
57°
20°
9
73°
40°
10
72°
43°
11
54°
36°
12
75°
36°
13
78°
59°
14
77°
58°
15
79°
59°
16
77°
57°
17
75°
53°
18
79°
46°
19
46°
33°
20
41°
28°
21
64°
51°
22
72°
41°
23
76°
48°
24
76°
53°
25
61°
45°
26
62°
42°
27
71°
48°
28
65°
44°
29
60°
42°
30
59°
40°
1
57°
38°
2
57°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in St. Petersburg
St. Petersburg's April 2026 forecast shows daily high temperatures ranging from 57° to 76°, with overnight lows between 38° and 53°. The average high for April is 65° with an average low of 44°. 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. Petersburg. See also: May | June | July.