S
M
T
W
T
F
S
30
70°
59°
31
70°
59°
1
68°
57°
2
68°
59°
3
68°
59°
4
64°
59°
5
63°
54°
6
67°
54°
7
73°
61°
8
63°
53°
9
62°
52°
10
62°
52°
11
61°
53°
12
63°
50°
13
64°
49°
14
63°
52°
15
64°
51°
16
65°
53°
17
63°
51°
18
64°
52°
19
65°
52°
20
63°
53°
21
64°
53°
22
64°
54°
23
65°
54°
24
65°
53°
25
64°
52°
26
62°
51°
27
60°
47°
28
58°
48°
29
59°
49°
30
58°
51°
1
61°
50°
2
60°
49°
3
60°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Harrislee
Harrislee's September 2026 forecast shows daily high temperatures ranging from 58° to 73°, with overnight lows between 47° and 61°. The average high for September is 63° with an average low of 52°. 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 Harrislee. See also: October | November | December.
