S
M
T
W
T
F
S
1
80°
63°
2
83°
67°
3
80°
68°
4
86°
69°
5
88°
71°
6
89°
71°
7
89°
72°
8
84°
73°
9
86°
72°
10
91°
73°
11
86°
73°
12
81°
70°
13
82°
68°
14
84°
72°
15
85°
71°
16
82°
62°
17
62°
50°
18
71°
53°
19
75°
57°
20
80°
60°
21
79°
61°
22
79°
63°
23
79°
63°
24
80°
66°
25
88°
69°
26
83°
69°
27
84°
70°
28
89°
69°
29
82°
71°
30
84°
71°
31
88°
72°
1
87°
71°
2
87°
71°
3
88°
74°
4
91°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in St. Petersburg
St. Petersburg's March 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for March is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how March weather will actually feel in St. Petersburg. See also: April | May | June.
