S
M
T
W
T
F
S
30
81°
56°
31
83°
60°
1
85°
61°
2
85°
60°
3
84°
58°
4
84°
61°
5
83°
59°
6
79°
59°
7
79°
58°
8
78°
59°
9
82°
54°
10
80°
53°
11
77°
59°
12
82°
58°
13
82°
58°
14
77°
57°
15
83°
58°
16
81°
58°
17
Hist. Avg.
78°
55°
18
Hist. Avg.
77°
55°
19
Hist. Avg.
77°
54°
20
Hist. Avg.
77°
54°
21
Hist. Avg.
76°
54°
22
Hist. Avg.
76°
53°
23
Hist. Avg.
75°
53°
24
Hist. Avg.
75°
52°
25
Hist. Avg.
75°
52°
26
Hist. Avg.
74°
51°
27
Hist. Avg.
74°
51°
28
Hist. Avg.
73°
51°
29
Hist. Avg.
73°
50°
30
Hist. Avg.
73°
50°
1
Hist. Avg.
72°
49°
2
Hist. Avg.
72°
49°
3
Hist. Avg.
72°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Harpers Ferry
Harpers Ferry's September 2026 forecast shows daily high temperatures ranging from 77° to 85°, with overnight lows between 53° and 61°. 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 Harpers Ferry. See also: October | November | December.
