S
M
T
W
T
F
S
30
91°
65°
31
91°
64°
1
90°
63°
2
88°
62°
3
86°
62°
4
87°
61°
5
88°
62°
6
88°
62°
7
87°
61°
8
88°
61°
9
87°
60°
10
87°
61°
11
86°
61°
12
87°
60°
13
86°
60°
14
87°
59°
15
87°
58°
16
86°
58°
17
88°
57°
18
87°
52°
19
77°
51°
20
80°
55°
21
85°
55°
22
85°
54°
23
84°
53°
24
75°
53°
25
75°
50°
26
74°
50°
27
74°
45°
28
75°
45°
29
75°
50°
30
79°
51°
1
82°
53°
2
81°
54°
3
82°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Earth
Earth's September 2026 forecast shows daily high temperatures ranging from 74° to 91°, with overnight lows between 45° and 65°. The average high for September is 84° with an average low of 57°. 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 Earth. See also: October | November | December.
