S
M
T
W
T
F
S
1
68°
46°
2
71°
48°
3
78°
45°
4
78°
62°
5
81°
59°
6
83°
58°
7
74°
54°
8
67°
50°
9
73°
50°
10
77°
70°
11
75°
47°
12
58°
38°
13
74°
38°
14
76°
42°
15
72°
40°
16
43°
31°
17
51°
20°
18
71°
44°
19
80°
41°
20
86°
51°
21
89°
56°
22
91°
63°
23
75°
52°
24
57°
47°
25
85°
47°
26
87°
66°
27
72°
49°
28
61°
40°
29
76°
38°
30
83°
59°
31
83°
65°
1
86°
63°
2
79°
70°
3
85°
70°
4
73°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Jacksonville
Jacksonville'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 Jacksonville. See also: April | May | June.