S
M
T
W
T
F
S
31
86°
74°
1
87°
73°
2
90°
71°
3
80°
70°
4
84°
69°
5
84°
70°
6
88°
72°
7
90°
74°
8
91°
74°
9
90°
76°
10
90°
75°
11
91°
73°
12
92°
77°
13
91°
76°
14
89°
74°
15
90°
75°
16
89°
75°
17
89°
76°
18
90°
76°
19
91°
75°
20
92°
76°
21
92°
76°
22
91°
75°
23
92°
76°
24
92°
76°
25
91°
77°
26
92°
76°
27
91°
77°
28
92°
76°
29
90°
76°
30
91°
75°
1
90°
76°
2
88°
76°
3
88°
75°
4
90°
77°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Jacksonville
Jacksonville's June 2026 forecast shows daily high temperatures ranging from 80° to 92°, with overnight lows between 69° and 77°. The average high for June is 90° with an average low of 75°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Jacksonville. See also: July | August | September.