S
M
T
W
T
F
S
28
92°
73°
29
88°
71°
30
88°
71°
1
90°
72°
2
91°
72°
3
91°
71°
4
90°
71°
5
90°
72°
6
92°
72°
7
92°
73°
8
91°
73°
9
91°
72°
10
92°
72°
11
89°
71°
12
90°
73°
13
89°
72°
14
90°
73°
15
90°
74°
16
91°
72°
17
92°
74°
18
92°
73°
19
91°
72°
20
93°
73°
21
93°
74°
22
91°
72°
23
90°
73°
24
92°
74°
25
93°
74°
26
93°
73°
27
91°
74°
28
91°
73°
29
90°
74°
30
89°
73°
31
91°
74°
1
90°
73°
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 88° to 93°, with overnight lows between 71° and 74°. The average high for July is 91° 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 July weather will actually feel in St. Augustine. See also: August | September | October.