S
M
T
W
T
F
S
30
100°
74°
31
97°
70°
1
93°
71°
2
96°
71°
3
102°
69°
4
101°
67°
5
100°
71°
6
98°
73°
7
98°
69°
8
98°
72°
9
99°
68°
10
94°
69°
11
100°
65°
12
102°
70°
13
100°
66°
14
97°
71°
15
93°
68°
16
83°
64°
17
90°
64°
18
91°
66°
19
88°
64°
20
91°
60°
21
84°
61°
22
76°
56°
23
74°
58°
24
75°
57°
25
76°
54°
26
80°
55°
27
81°
53°
28
81°
52°
29
78°
51°
30
78°
48°
1
74°
54°
2
76°
53°
3
81°
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 48° and 66°. The average high for September is 81° with an average low of 56°. 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.
