S
M
T
W
T
F
S
30
71°
54°
31
72°
58°
1
73°
60°
2
75°
61°
3
79°
60°
4
79°
61°
5
76°
60°
6
74°
59°
7
69°
59°
8
71°
57°
9
73°
59°
10
75°
58°
11
76°
58°
12
77°
59°
13
76°
58°
14
76°
57°
15
71°
55°
16
65°
52°
17
68°
55°
18
72°
56°
19
72°
55°
20
70°
56°
21
73°
50°
22
74°
51°
23
74°
49°
24
72°
48°
25
73°
41°
26
67°
52°
27
71°
52°
28
72°
54°
29
74°
44°
30
71°
38°
1
67°
41°
2
66°
46°
3
65°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Annandale
Annandale's September 2026 forecast shows daily high temperatures ranging from 65° to 79°, with overnight lows between 38° and 61°. The average high for September is 72° with an average low of 54°. 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 Annandale. See also: October | November | December.
