S
M
T
W
T
F
S
28
93°
76°
29
89°
74°
30
90°
75°
1
90°
74°
2
90°
76°
3
88°
75°
4
89°
77°
5
90°
75°
6
89°
75°
7
88°
75°
8
88°
74°
9
89°
75°
10
88°
75°
11
88°
74°
12
89°
75°
13
89°
75°
14
90°
74°
15
88°
75°
16
88°
75°
17
89°
74°
18
88°
75°
19
87°
74°
20
88°
75°
21
89°
74°
22
89°
75°
23
88°
75°
24
88°
74°
25
89°
73°
26
88°
75°
27
88°
75°
28
89°
74°
29
89°
75°
30
90°
76°
31
89°
76°
1
88°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in St. Augustine
St. Augustine's July 2026 forecast shows daily high temperatures ranging from 87° to 93°, with overnight lows between 73° and 77°. The average high for July is 89° with an average low of 75°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in St. Augustine. See also: August | September | October.
