S
M
T
W
T
F
S
30
89°
74°
31
90°
74°
1
92°
73°
2
94°
74°
3
92°
73°
4
91°
75°
5
93°
76°
6
95°
73°
7
87°
71°
8
88°
72°
9
85°
75°
10
90°
74°
11
90°
75°
12
91°
72°
13
93°
74°
14
95°
75°
15
90°
74°
16
90°
70°
17
90°
68°
18
92°
68°
19
93°
70°
20
85°
71°
21
90°
73°
22
88°
73°
23
83°
70°
24
73°
63°
25
78°
54°
26
78°
55°
27
86°
60°
28
88°
65°
29
88°
68°
30
85°
70°
1
88°
72°
2
87°
73°
3
87°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in South Newport
South Newport's September 2026 forecast shows daily high temperatures ranging from 78° to 88°, with overnight lows between 55° and 74°. The average high for September is 86° with an average low of 67°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in South Newport. See also: October | November | December.
