S
M
T
W
T
F
S
30
90°
72°
31
89°
66°
1
87°
65°
2
87°
65°
3
88°
70°
4
90°
70°
5
93°
66°
6
87°
67°
7
87°
70°
8
91°
68°
9
89°
63°
10
85°
64°
11
89°
63°
12
86°
62°
13
84°
61°
14
83°
60°
15
84°
61°
16
83°
60°
17
87°
62°
18
89°
65°
19
89°
59°
20
88°
58°
21
Hist. Avg.
84°
60°
22
Hist. Avg.
83°
60°
23
Hist. Avg.
83°
60°
24
Hist. Avg.
83°
59°
25
Hist. Avg.
82°
59°
26
Hist. Avg.
82°
58°
27
Hist. Avg.
82°
58°
28
Hist. Avg.
81°
58°
29
Hist. Avg.
81°
57°
30
Hist. Avg.
80°
57°
1
Hist. Avg.
80°
56°
2
Hist. Avg.
80°
56°
3
Hist. Avg.
80°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in McCurtain
McCurtain's September 2026 forecast shows daily high temperatures ranging from 83° to 93°, with overnight lows between 58° and 72°. The average high for September is 88° with an average low of 64°. 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 McCurtain. See also: October | November | December.