S
M
T
W
T
F
S
30
81°
52°
31
75°
64°
1
90°
66°
2
71°
67°
3
88°
66°
4
82°
68°
5
79°
60°
6
79°
57°
7
78°
51°
8
83°
50°
9
82°
56°
10
84°
66°
11
80°
54°
12
74°
50°
13
82°
64°
14
71°
49°
15
73°
41°
16
82°
52°
17
78°
64°
18
78°
52°
19
70°
59°
20
67°
56°
21
68°
53°
22
64°
48°
23
65°
49°
24
68°
48°
25
70°
47°
26
72°
47°
27
71°
50°
28
72°
50°
29
71°
47°
30
72°
43°
1
68°
48°
2
73°
48°
3
63°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Weather
Weather's September 2026 forecast shows daily high temperatures ranging from 63° to 78°, with overnight lows between 43° and 64°. The average high for September is 70° with an average low of 50°. 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 Weather. See also: October | November | December.
