S
M
T
W
T
F
S
31
83°
66°
1
87°
64°
2
83°
55°
3
82°
51°
4
84°
56°
5
82°
69°
6
89°
73°
7
88°
71°
8
83°
73°
9
88°
73°
10
88°
66°
11
89°
65°
12
80°
59°
13
79°
64°
14
72°
56°
15
76°
51°
16
79°
54°
17
81°
53°
18
75°
60°
19
80°
57°
20
82°
63°
21
74°
57°
22
75°
56°
23
77°
61°
24
81°
59°
25
80°
57°
26
78°
63°
27
81°
69°
28
88°
68°
29
87°
68°
30
85°
68°
1
81°
66°
2
82°
67°
3
86°
66°
4
82°
68°
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 74° to 88°, with overnight lows between 56° and 69°. The average high for June is 81° with an average low of 64°. 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.