S
M
T
W
T
F
S
30
65°
55°
31
66°
54°
1
67°
52°
2
66°
53°
3
65°
52°
4
66°
52°
5
64°
51°
6
65°
51°
7
66°
53°
8
66°
53°
9
65°
51°
10
66°
53°
11
64°
52°
12
66°
51°
13
65°
52°
14
66°
53°
15
65°
52°
16
64°
52°
17
65°
49°
18
63°
50°
19
61°
50°
20
Hist. Avg.
60°
48°
21
Hist. Avg.
60°
48°
22
Hist. Avg.
60°
48°
23
Hist. Avg.
59°
48°
24
Hist. Avg.
59°
48°
25
Hist. Avg.
59°
47°
26
Hist. Avg.
59°
47°
27
Hist. Avg.
59°
47°
28
Hist. Avg.
58°
47°
29
Hist. Avg.
58°
47°
30
Hist. Avg.
58°
47°
1
Hist. Avg.
58°
47°
2
Hist. Avg.
58°
46°
3
Hist. Avg.
58°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Dunmurry
Dunmurry's September 2026 forecast shows daily high temperatures ranging from 61° to 67°, with overnight lows between 49° and 55°. The average high for September is 65° 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 Dunmurry. See also: October | November | December.
