S
M
T
W
T
F
S
30
73°
53°
31
78°
59°
1
75°
59°
2
80°
53°
3
74°
49°
4
70°
49°
5
69°
50°
6
68°
52°
7
75°
57°
8
78°
58°
9
79°
56°
10
77°
51°
11
72°
52°
12
71°
52°
13
73°
48°
14
69°
48°
15
67°
47°
16
68°
46°
17
72°
53°
18
75°
45°
19
67°
50°
20
70°
44°
21
68°
49°
22
66°
52°
23
73°
54°
24
75°
52°
25
73°
52°
26
70°
53°
27
73°
52°
28
74°
47°
29
71°
50°
30
70°
52°
1
72°
45°
2
72°
41°
3
67°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in New Prospect
New Prospect's September 2026 forecast shows daily high temperatures ranging from 66° to 80°, with overnight lows between 39° and 59°. The average high for September is 72° 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 New Prospect. See also: October | November | December.
