S
M
T
W
T
F
S
28
92°
76°
29
92°
76°
30
98°
75°
1
96°
75°
2
96°
77°
3
94°
72°
4
96°
74°
5
93°
72°
6
90°
71°
7
89°
72°
8
88°
73°
9
92°
72°
10
90°
72°
11
87°
70°
12
89°
70°
13
92°
71°
14
85°
65°
15
85°
65°
16
87°
66°
17
91°
70°
18
92°
72°
19
93°
72°
20
91°
71°
21
91°
72°
22
92°
73°
23
93°
73°
24
93°
72°
25
92°
72°
26
93°
73°
27
93°
73°
28
94°
72°
29
94°
73°
30
93°
73°
31
93°
72°
1
92°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in St. Martins
St. Martins's July 2026 forecast shows daily high temperatures ranging from 85° to 98°, with overnight lows between 65° and 77°. The average high for July is 92° with an average low of 72°. 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. Martins. See also: August | September | October.