S
M
T
W
T
F
S
30
86°
67°
31
90°
62°
1
87°
57°
2
88°
65°
3
89°
69°
4
87°
65°
5
86°
64°
6
82°
67°
7
84°
68°
8
86°
64°
9
79°
56°
10
81°
51°
11
86°
65°
12
73°
50°
13
72°
46°
14
63°
46°
15
72°
49°
16
75°
45°
17
73°
56°
18
63°
57°
19
62°
58°
20
65°
52°
21
60°
49°
22
67°
43°
23
69°
44°
24
64°
57°
25
69°
59°
26
62°
57°
27
70°
53°
28
70°
59°
29
67°
52°
30
69°
55°
1
68°
49°
2
67°
50°
3
61°
47°
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 61° to 70°, with overnight lows between 47° and 59°. The average high for September is 67° with an average low of 53°. 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.
