S
M
T
W
T
F
S
30
77°
61°
31
75°
63°
1
81°
66°
2
84°
63°
3
84°
66°
4
82°
64°
5
77°
59°
6
75°
55°
7
79°
52°
8
79°
55°
9
81°
59°
10
84°
66°
11
77°
57°
12
79°
52°
13
77°
64°
14
73°
50°
15
72°
46°
16
77°
55°
17
79°
68°
18
81°
52°
19
71°
57°
20
65°
54°
21
69°
50°
22
63°
54°
23
66°
54°
24
69°
55°
25
72°
54°
26
71°
55°
27
75°
56°
28
71°
55°
29
73°
56°
30
72°
49°
1
67°
51°
2
72°
54°
3
65°
53°
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 63° to 81°, with overnight lows between 49° and 68°. The average high for September is 71° with an average low of 55°. 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.
