S
M
T
W
T
F
S
30
89°
67°
31
90°
68°
1
93°
69°
2
93°
72°
3
95°
72°
4
95°
72°
5
88°
72°
6
88°
70°
7
88°
70°
8
86°
66°
9
N/A
10
89°
65°
11
88°
66°
12
83°
66°
13
88°
67°
14
91°
67°
15
88°
69°
16
91°
69°
17
87°
67°
18
88°
64°
19
78°
59°
20
80°
58°
21
79°
57°
22
80°
57°
23
84°
62°
24
83°
61°
25
82°
57°
26
83°
57°
27
83°
60°
28
82°
60°
29
83°
59°
30
83°
60°
1
81°
58°
2
81°
56°
3
80°
58°
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 78° to 91°, with overnight lows between 56° and 69°. The average high for September is 84° 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.