S
M
T
W
T
F
S
30
93°
62°
31
97°
72°
1
99°
70°
2
99°
72°
3
100°
72°
4
100°
73°
5
103°
73°
6
91°
73°
7
91°
58°
8
92°
72°
9
97°
73°
10
78°
64°
11
84°
65°
12
88°
67°
13
89°
66°
14
86°
64°
15
85°
60°
16
83°
57°
17
85°
60°
18
85°
59°
19
81°
58°
20
80°
54°
21
84°
59°
22
79°
59°
23
81°
58°
24
83°
59°
25
83°
60°
26
84°
60°
27
83°
59°
28
82°
59°
29
83°
60°
30
83°
59°
1
79°
54°
2
71°
48°
3
69°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Murphysboro
Murphysboro's September 2026 forecast shows daily high temperatures ranging from 69° to 97°, with overnight lows between 45° and 73°. The average high for September is 83° with an average low of 60°. 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 Murphysboro. See also: October | November | December.
