S
M
T
W
T
F
S
26
84°
70°
27
88°
72°
28
90°
73°
29
91°
78°
30
90°
71°
31
89°
69°
1
90°
81°
2
87°
75°
3
86°
76°
4
82°
74°
5
86°
74°
6
88°
80°
7
88°
77°
8
88°
76°
9
88°
75°
10
90°
78°
11
91°
78°
12
90°
73°
13
91°
76°
14
91°
80°
15
90°
76°
16
90°
75°
17
91°
75°
18
96°
82°
19
93°
77°
20
92°
79°
21
92°
72°
22
87°
74°
23
89°
72°
24
90°
75°
25
89°
72°
26
89°
70°
27
85°
75°
28
85°
74°
29
85°
75°
30
86°
73°
31
88°
75°
1
91°
74°
2
91°
74°
3
93°
76°
4
92°
74°
5
90°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Southport
Southport's August 2026 forecast shows daily high temperatures ranging from 85° to 93°, with overnight lows between 73° and 76°. The average high for August is 89° 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 August weather will actually feel in Southport. See also: September | October | November.