S
M
T
W
T
F
S
31
87°
70°
1
85°
68°
2
85°
67°
3
86°
67°
4
89°
70°
5
87°
70°
6
86°
69°
7
86°
70°
8
86°
71°
9
89°
71°
10
90°
70°
11
86°
71°
12
86°
70°
13
88°
72°
14
87°
71°
15
86°
72°
16
89°
71°
17
89°
71°
18
90°
72°
19
91°
72°
20
90°
73°
21
91°
72°
22
91°
73°
23
90°
74°
24
92°
75°
25
93°
75°
26
93°
74°
27
91°
74°
28
92°
72°
29
91°
72°
30
91°
73°
1
92°
72°
2
91°
73°
3
90°
72°
4
89°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in St. Augustine
St. Augustine's June 2026 forecast shows daily high temperatures ranging from 85° to 93°, with overnight lows between 67° and 75°. The average high for June is 89° with an average low of 71°. 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. See also: July | August | September.