S
M
T
W
T
F
S
30
100°
71°
31
98°
80°
1
99°
70°
2
101°
70°
3
103°
73°
4
94°
77°
5
97°
71°
6
97°
72°
7
98°
70°
8
99°
74°
9
99°
75°
10
100°
74°
11
101°
72°
12
104°
74°
13
99°
76°
14
97°
75°
15
101°
75°
16
99°
70°
17
96°
73°
18
95°
69°
19
98°
71°
20
96°
72°
21
96°
63°
22
92°
69°
23
96°
69°
24
94°
70°
25
96°
71°
26
96°
71°
27
98°
72°
28
97°
66°
29
94°
73°
30
90°
78°
1
87°
70°
2
83°
69°
3
70°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in May
May's September 2026 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 May. See also: October | November | December.
