S
M
T
W
T
F
S
31
105°
65°
1
102°
65°
2
103°
71°
3
87°
61°
4
90°
61°
5
88°
60°
6
80°
60°
7
88°
58°
8
87°
61°
9
81°
65°
10
78°
60°
11
83°
58°
12
89°
60°
13
81°
59°
14
89°
59°
15
94°
58°
16
99°
62°
17
89°
63°
18
91°
69°
19
89°
68°
20
85°
63°
21
93°
62°
22
94°
62°
23
98°
63°
24
83°
70°
25
90°
65°
26
89°
57°
27
84°
62°
28
80°
58°
29
76°
64°
30
85°
60°
1
71°
63°
2
71°
64°
3
74°
59°
4
74°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in August
August's September 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 August. See also: October | November | December.
