S
M
T
W
T
F
S
31
87°
74°
1
87°
74°
2
90°
74°
3
80°
72°
4
82°
72°
5
82°
72°
6
85°
72°
7
87°
74°
8
86°
74°
9
85°
73°
10
86°
72°
11
87°
71°
12
87°
73°
13
87°
72°
14
88°
73°
15
84°
74°
16
88°
80°
17
86°
74°
18
87°
73°
19
86°
74°
20
86°
74°
21
87°
73°
22
87°
74°
23
88°
75°
24
87°
74°
25
86°
73°
26
86°
74°
27
87°
75°
28
88°
75°
29
87°
74°
30
89°
75°
1
89°
74°
2
87°
75°
3
85°
73°
4
84°
74°
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 80° to 89°, with overnight lows between 71° and 80°. The average high for June is 86° with an average low of 74°. 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.