S
M
T
W
T
F
S
30
72°
57°
31
70°
54°
1
72°
52°
2
70°
57°
3
72°
63°
4
66°
59°
5
68°
48°
6
73°
46°
7
68°
57°
8
64°
55°
9
64°
50°
10
N/A
11
69°
49°
12
69°
59°
13
70°
56°
14
75°
58°
15
66°
50°
16
66°
54°
17
65°
51°
18
65°
52°
19
65°
49°
20
63°
49°
21
64°
52°
22
65°
49°
23
64°
50°
24
65°
52°
25
62°
52°
26
61°
50°
27
63°
52°
28
64°
47°
29
58°
46°
30
59°
49°
1
59°
50°
2
63°
51°
3
62°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Newport
Newport's September 2026 forecast shows daily high temperatures ranging from 58° to 75°, with overnight lows between 46° and 59°. The average high for September is 64° 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.