S
M
T
W
T
F
S
30
85°
53°
31
78°
55°
1
78°
56°
2
80°
60°
3
83°
59°
4
82°
55°
5
78°
58°
6
83°
59°
7
83°
57°
8
82°
56°
9
81°
57°
10
80°
55°
11
80°
56°
12
80°
56°
13
Hist. Avg.
78°
53°
14
Hist. Avg.
78°
53°
15
Hist. Avg.
78°
52°
16
Hist. Avg.
77°
52°
17
Hist. Avg.
77°
51°
18
Hist. Avg.
76°
51°
19
Hist. Avg.
76°
50°
20
Hist. Avg.
76°
50°
21
Hist. Avg.
75°
50°
22
Hist. Avg.
75°
49°
23
Hist. Avg.
74°
49°
24
Hist. Avg.
74°
48°
25
Hist. Avg.
74°
48°
26
Hist. Avg.
73°
47°
27
Hist. Avg.
73°
47°
28
Hist. Avg.
72°
46°
29
Hist. Avg.
72°
46°
30
Hist. Avg.
72°
46°
1
Hist. Avg.
71°
45°
2
Hist. Avg.
71°
45°
3
Hist. Avg.
71°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in McArthur
McArthur's September 2026 forecast shows daily high temperatures ranging from 78° to 85°, with overnight lows between 53° and 60°. The average high for September is 81° with an average low of 57°. 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 McArthur. See also: October | November | December.
