S
M
T
W
T
F
S
31
84°
74°
1
87°
73°
2
87°
74°
3
82°
72°
4
84°
71°
5
85°
70°
6
86°
72°
7
88°
71°
8
86°
72°
9
86°
73°
10
87°
73°
11
88°
71°
12
85°
73°
13
84°
73°
14
84°
72°
15
83°
73°
16
85°
73°
17
85°
72°
18
86°
74°
19
86°
74°
20
85°
73°
21
85°
73°
22
86°
74°
23
86°
74°
24
87°
72°
25
86°
73°
26
86°
73°
27
87°
72°
28
86°
73°
29
86°
74°
30
87°
75°
1
88°
75°
2
88°
74°
3
89°
75°
4
89°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in St. Augustine Beach
St. Augustine Beach's June 2026 forecast shows daily high temperatures ranging from 82° to 89°, with overnight lows between 70° and 75°. The average high for June is 86° 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 St. Augustine Beach. See also: July | August | September.