S
M
T
W
T
F
S
30
82°
64°
31
84°
66°
1
86°
63°
2
81°
60°
3
80°
60°
4
80°
59°
5
81°
59°
6
81°
61°
7
83°
59°
8
84°
64°
9
84°
64°
10
85°
63°
11
84°
62°
12
84°
64°
13
83°
64°
14
83°
63°
15
84°
63°
16
84°
62°
17
82°
63°
18
82°
62°
19
81°
61°
20
82°
61°
21
80°
59°
22
81°
53°
23
77°
56°
24
75°
60°
25
76°
60°
26
Hist. Avg.
79°
55°
27
Hist. Avg.
78°
55°
28
Hist. Avg.
78°
54°
29
Hist. Avg.
78°
54°
30
Hist. Avg.
77°
54°
1
Hist. Avg.
77°
53°
2
Hist. Avg.
76°
53°
3
Hist. Avg.
76°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Mascot
Mascot's September 2026 forecast shows daily high temperatures ranging from 75° to 86°, with overnight lows between 53° and 66°. The average high for September is 82° with an average low of 61°. 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.