S
M
T
W
T
F
S
30
89°
67°
31
90°
68°
1
93°
69°
2
95°
69°
3
95°
69°
4
93°
69°
5
92°
68°
6
89°
67°
7
88°
66°
8
88°
67°
9
90°
66°
10
92°
65°
11
90°
68°
12
88°
66°
13
87°
65°
14
88°
64°
15
87°
60°
16
79°
63°
17
78°
63°
18
76°
63°
19
78°
63°
20
78°
62°
21
77°
63°
22
78°
63°
23
81°
62°
24
79°
61°
25
79°
62°
26
80°
61°
27
80°
54°
28
74°
51°
29
72°
50°
30
74°
50°
1
73°
51°
2
73°
57°
3
72°
58°
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 72° to 95°, with overnight lows between 50° and 69°. The average high for September is 83° with an average low of 62°. 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.