S
M
T
W
T
F
S
30
83°
67°
31
89°
61°
1
84°
54°
2
85°
54°
3
90°
63°
4
89°
58°
5
87°
64°
6
88°
70°
7
84°
68°
8
89°
62°
9
77°
55°
10
89°
51°
11
78°
49°
12
67°
46°
13
68°
50°
14
62°
47°
15
69°
42°
16
68°
49°
17
72°
51°
18
72°
49°
19
71°
46°
20
70°
48°
21
77°
53°
22
69°
50°
23
71°
49°
24
69°
42°
25
73°
50°
26
69°
49°
27
72°
51°
28
71°
49°
29
68°
47°
30
69°
46°
1
62°
46°
2
65°
45°
3
61°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Arthur
Arthur's September 2026 forecast shows daily high temperatures ranging from 61° to 78°, with overnight lows between 42° and 53°. The average high for September is 69° with an average low of 48°. 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 Arthur. See also: October | November | December.
