S
M
T
W
T
F
S
30
92°
66°
31
92°
67°
1
87°
69°
2
90°
68°
3
88°
66°
4
90°
64°
5
89°
65°
6
90°
67°
7
91°
67°
8
90°
65°
9
90°
67°
10
89°
66°
11
90°
67°
12
90°
67°
13
89°
66°
14
89°
65°
15
87°
64°
16
88°
64°
17
88°
65°
18
87°
64°
19
88°
64°
20
87°
65°
21
86°
64°
22
87°
65°
23
88°
64°
24
86°
63°
25
86°
58°
26
82°
58°
27
Hist. Avg.
83°
59°
28
Hist. Avg.
83°
58°
29
Hist. Avg.
82°
58°
30
Hist. Avg.
82°
57°
1
Hist. Avg.
82°
57°
2
Hist. Avg.
82°
56°
3
Hist. Avg.
81°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Marion Junction
Marion Junction's September 2026 forecast shows daily high temperatures ranging from 82° to 92°, with overnight lows between 58° and 69°. The average high for September is 88° with an average low of 65°. 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 Marion Junction. See also: October | November | December.
