S
M
T
W
T
F
S
31
88°
72°
1
87°
71°
2
87°
69°
3
88°
70°
4
90°
70°
5
88°
71°
6
87°
71°
7
87°
72°
8
88°
71°
9
88°
71°
10
89°
72°
11
87°
73°
12
88°
73°
13
89°
74°
14
90°
73°
15
88°
74°
16
89°
73°
17
88°
72°
18
91°
72°
19
91°
73°
20
92°
72°
21
92°
72°
22
91°
73°
23
91°
74°
24
90°
75°
25
92°
75°
26
92°
76°
27
91°
75°
28
92°
74°
29
91°
74°
30
91°
73°
1
92°
74°
2
90°
75°
3
89°
74°
4
90°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Siesta Key
Siesta Key's June 2026 forecast shows daily high temperatures ranging from 87° to 92°, with overnight lows between 69° and 76°. The average high for June is 90° with an average low of 73°. 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 Siesta Key. See also: July | August | September.