S
M
T
W
T
F
S
30
93°
66°
31
95°
72°
1
99°
73°
2
98°
73°
3
99°
73°
4
100°
73°
5
102°
75°
6
91°
69°
7
88°
61°
8
92°
74°
9
97°
72°
10
85°
66°
11
85°
65°
12
90°
68°
13
93°
70°
14
96°
72°
15
87°
65°
16
82°
61°
17
80°
62°
18
79°
57°
19
76°
59°
20
77°
55°
21
80°
58°
22
79°
63°
23
82°
62°
24
84°
64°
25
85°
64°
26
85°
63°
27
84°
63°
28
83°
62°
29
84°
63°
30
84°
63°
1
83°
59°
2
81°
53°
3
70°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Newburgh
Newburgh's September 2026 forecast shows daily high temperatures ranging from 70° to 97°, with overnight lows between 49° and 74°. The average high for September is 84° with an average low of 63°. 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 Newburgh. See also: October | November | December.
