S
M
T
W
T
F
S
30
79°
64°
31
84°
63°
1
85°
63°
2
86°
62°
3
86°
56°
4
80°
61°
5
78°
62°
6
85°
59°
7
82°
55°
8
76°
53°
9
75°
60°
10
76°
61°
11
83°
60°
12
83°
61°
13
84°
59°
14
83°
52°
15
81°
53°
16
72°
56°
17
73°
49°
18
73°
50°
19
74°
46°
20
71°
47°
21
71°
48°
22
72°
55°
23
76°
54°
24
78°
56°
25
78°
56°
26
77°
55°
27
79°
56°
28
77°
51°
29
75°
50°
30
72°
50°
1
73°
51°
2
77°
52°
3
69°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Letts
Letts's September 2026 forecast shows daily high temperatures ranging from 69° to 86°, with overnight lows between 43° and 64°. The average high for September is 78° with an average low of 55°. 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 Letts. See also: October | November | December.
