S
M
T
W
T
F
S
30
64°
56°
31
65°
56°
1
64°
57°
2
63°
54°
3
63°
56°
4
64°
58°
5
63°
55°
6
62°
54°
7
62°
53°
8
63°
52°
9
64°
54°
10
63°
55°
11
62°
57°
12
61°
56°
13
60°
57°
14
62°
56°
15
64°
52°
16
62°
51°
17
60°
53°
18
62°
57°
19
64°
58°
20
65°
57°
21
64°
58°
22
65°
56°
23
66°
57°
24
64°
56°
25
62°
53°
26
61°
52°
27
60°
53°
28
59°
54°
29
61°
55°
30
56°
51°
1
56°
53°
2
Hist. Avg.
58°
45°
3
Hist. Avg.
57°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Klamp
Klamp's September 2026 forecast shows daily high temperatures ranging from 56° to 66°, with overnight lows between 51° and 58°. The average high for September is 62° 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 Klamp. See also: October | November | December.