S
M
T
W
T
F
S
31
77°
48°
1
79°
51°
2
78°
55°
3
82°
51°
4
87°
63°
5
89°
65°
6
91°
70°
7
71°
60°
8
76°
54°
9
74°
49°
10
67°
63°
11
75°
56°
12
81°
55°
13
81°
51°
14
79°
54°
15
74°
58°
16
64°
60°
17
65°
61°
18
77°
61°
19
87°
58°
20
84°
59°
21
77°
58°
22
79°
54°
23
85°
64°
24
87°
67°
25
89°
73°
26
83°
68°
27
73°
67°
28
79°
62°
29
75°
61°
30
72°
67°
1
73°
51°
2
71°
47°
3
72°
44°
4
75°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Mascot
Mascot's September 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Mascot. See also: October | November | December.