S
M
T
W
T
F
S
31
76°
50°
1
77°
45°
2
76°
46°
3
83°
46°
4
78°
52°
5
85°
54°
6
88°
61°
7
73°
48°
8
72°
41°
9
75°
40°
10
77°
46°
11
80°
50°
12
80°
47°
13
84°
47°
14
86°
53°
15
80°
53°
16
72°
58°
17
67°
57°
18
86°
55°
19
87°
49°
20
85°
58°
21
80°
61°
22
84°
63°
23
82°
60°
24
77°
58°
25
81°
63°
26
82°
58°
27
69°
66°
28
78°
59°
29
73°
57°
30
71°
59°
1
63°
48°
2
71°
46°
3
74°
42°
4
79°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Harrisonburg
Harrisonburg's September 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Harrisonburg. See also: October | November | December.
