S
M
T
W
T
F
S
30
80°
69°
31
82°
69°
1
85°
68°
2
81°
64°
3
82°
65°
4
82°
66°
5
83°
63°
6
80°
61°
7
80°
66°
8
84°
66°
9
85°
67°
10
86°
66°
11
87°
67°
12
89°
58°
13
88°
54°
14
83°
64°
15
86°
61°
16
82°
56°
17
74°
53°
18
75°
59°
19
84°
55°
20
74°
57°
21
78°
56°
22
80°
50°
23
74°
50°
24
78°
51°
25
78°
53°
26
79°
55°
27
82°
52°
28
78°
53°
29
76°
53°
30
81°
60°
1
82°
44°
2
84°
43°
3
76°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in La Harpe
La Harpe's September 2026 forecast shows daily high temperatures ranging from 74° to 89°, with overnight lows between 43° and 69°. The average high for September is 81° with an average low of 58°. 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 La Harpe. See also: October | November | December.
