S
M
T
W
T
F
S
30
87°
69°
31
88°
69°
1
92°
73°
2
89°
74°
3
95°
73°
4
92°
70°
5
84°
65°
6
81°
61°
7
81°
62°
8
82°
61°
9
84°
66°
10
89°
64°
11
83°
62°
12
80°
58°
13
80°
59°
14
78°
58°
15
74°
62°
16
72°
63°
17
72°
58°
18
71°
53°
19
70°
54°
20
70°
56°
21
74°
57°
22
76°
60°
23
78°
61°
24
78°
60°
25
76°
59°
26
75°
58°
27
76°
59°
28
75°
58°
29
77°
57°
30
72°
56°
1
67°
52°
2
69°
56°
3
72°
56°
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 67° to 95°, with overnight lows between 52° and 74°. The average high for September is 78° with an average low of 61°. 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.
