S
M
T
W
T
F
S
30
88°
64°
31
89°
68°
1
88°
72°
2
93°
71°
3
94°
72°
4
91°
70°
5
85°
69°
6
82°
60°
7
84°
60°
8
86°
61°
9
87°
67°
10
78°
71°
11
81°
67°
12
85°
67°
13
84°
68°
14
74°
55°
15
85°
51°
16
90°
64°
17
86°
70°
18
82°
64°
19
83°
60°
20
78°
67°
21
71°
61°
22
69°
59°
23
66°
55°
24
70°
44°
25
69°
42°
26
68°
46°
27
72°
51°
28
67°
50°
29
69°
51°
30
71°
52°
1
71°
53°
2
70°
49°
3
69°
56°
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 66° to 72°, with overnight lows between 42° and 61°. The average high for September is 69° with an average low of 51°. 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.
