S
M
T
W
T
F
S
31
73°
64°
1
87°
64°
2
78°
61°
3
80°
54°
4
84°
53°
5
87°
57°
6
88°
62°
7
85°
68°
8
79°
69°
9
77°
66°
10
85°
68°
11
88°
70°
12
90°
69°
13
91°
70°
14
88°
69°
15
86°
68°
16
85°
71°
17
87°
68°
18
88°
69°
19
88°
70°
20
85°
73°
21
86°
67°
22
87°
69°
23
86°
69°
24
87°
68°
25
88°
69°
26
88°
69°
27
89°
68°
28
87°
70°
29
87°
67°
30
88°
68°
1
91°
70°
2
89°
70°
3
88°
69°
4
89°
70°
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 77° to 91°, with overnight lows between 66° and 73°. The average high for June is 87° with an average low of 69°. 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.