S
M
T
W
T
F
S
30
94°
70°
31
93°
70°
1
93°
68°
2
94°
68°
3
91°
67°
4
92°
63°
5
87°
61°
6
87°
65°
7
91°
69°
8
93°
69°
9
92°
67°
10
93°
68°
11
90°
67°
12
91°
66°
13
90°
67°
14
89°
66°
15
91°
67°
16
83°
62°
17
84°
66°
18
Hist. Avg.
87°
63°
19
Hist. Avg.
86°
62°
20
Hist. Avg.
86°
62°
21
Hist. Avg.
86°
62°
22
Hist. Avg.
85°
62°
23
Hist. Avg.
85°
61°
24
Hist. Avg.
85°
61°
25
Hist. Avg.
84°
61°
26
Hist. Avg.
84°
60°
27
Hist. Avg.
84°
60°
28
Hist. Avg.
83°
60°
29
Hist. Avg.
83°
59°
30
Hist. Avg.
83°
59°
1
Hist. Avg.
82°
59°
2
Hist. Avg.
82°
58°
3
Hist. Avg.
82°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Joplin
Joplin's September 2026 forecast shows daily high temperatures ranging from 83° to 94°, with overnight lows between 61° and 70°. The average high for September is 90° with an average low of 67°. 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 Joplin. See also: October | November | December.
