S
M
T
W
T
F
S
30
77°
54°
31
82°
58°
1
82°
58°
2
82°
57°
3
83°
51°
4
79°
48°
5
75°
49°
6
75°
55°
7
79°
55°
8
81°
56°
9
80°
55°
10
75°
54°
11
80°
53°
12
79°
55°
13
79°
55°
14
78°
54°
15
80°
55°
16
80°
52°
17
78°
53°
18
78°
47°
19
76°
45°
20
72°
44°
21
69°
42°
22
69°
49°
23
70°
46°
24
72°
43°
25
68°
42°
26
68°
43°
27
71°
42°
28
74°
48°
29
73°
47°
30
74°
46°
1
68°
47°
2
68°
40°
3
67°
46°
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 67° to 83°, with overnight lows between 40° and 58°. The average high for September is 75° 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.
