S
M
T
W
T
F
S
30
73°
60°
31
73°
62°
1
74°
63°
2
75°
64°
3
80°
64°
4
81°
63°
5
79°
62°
6
76°
61°
7
74°
60°
8
75°
61°
9
72°
61°
10
73°
60°
11
75°
60°
12
81°
61°
13
81°
61°
14
78°
60°
15
76°
59°
16
69°
58°
17
71°
58°
18
75°
57°
19
74°
58°
20
72°
58°
21
78°
52°
22
77°
52°
23
76°
51°
24
77°
50°
25
75°
44°
26
71°
52°
27
72°
56°
28
77°
55°
29
79°
48°
30
75°
40°
1
70°
38°
2
64°
46°
3
66°
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 64° to 81°, with overnight lows between 38° and 64°. The average high for September is 75° with an average low of 56°. 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.
