S
M
T
W
T
F
S
30
92°
73°
31
92°
73°
1
91°
72°
2
92°
73°
3
90°
73°
4
87°
72°
5
87°
72°
6
88°
70°
7
90°
67°
8
91°
70°
9
91°
72°
10
90°
72°
11
90°
71°
12
89°
72°
13
89°
72°
14
89°
67°
15
91°
68°
16
92°
69°
17
91°
70°
18
90°
68°
19
89°
64°
20
85°
67°
21
84°
64°
22
85°
64°
23
87°
65°
24
89°
66°
25
89°
66°
26
84°
64°
27
84°
65°
28
87°
64°
29
83°
65°
30
84°
65°
1
83°
64°
2
83°
65°
3
84°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Newport
Newport's September 2026 forecast shows daily high temperatures ranging from 83° to 92°, with overnight lows between 64° and 73°. The average high for September is 88° with an average low of 68°. 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 Newport. See also: October | November | December.