S
M
T
W
T
F
S
30
74°
55°
31
76°
58°
1
74°
58°
2
80°
49°
3
73°
48°
4
70°
49°
5
70°
48°
6
71°
53°
7
77°
56°
8
80°
58°
9
79°
52°
10
74°
50°
11
71°
56°
12
73°
52°
13
77°
47°
14
70°
47°
15
68°
44°
16
69°
47°
17
71°
53°
18
76°
43°
19
68°
50°
20
69°
44°
21
71°
50°
22
68°
52°
23
75°
53°
24
75°
52°
25
74°
52°
26
74°
51°
27
73°
52°
28
75°
50°
29
73°
50°
30
72°
51°
1
74°
46°
2
74°
41°
3
71°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lake Summerset
Lake Summerset's September 2026 forecast shows daily high temperatures ranging from 68° to 80°, with overnight lows between 40° and 58°. The average high for September is 73° with an average low of 50°. 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 Lake Summerset. See also: October | November | December.
