S
M
T
W
T
F
S
30
83°
62°
31
87°
61°
1
83°
61°
2
83°
62°
3
84°
65°
4
86°
65°
5
87°
62°
6
86°
61°
7
83°
59°
8
81°
60°
9
81°
59°
10
83°
60°
11
85°
61°
12
80°
62°
13
82°
63°
14
85°
63°
15
Hist. Avg.
83°
61°
16
Hist. Avg.
83°
60°
17
Hist. Avg.
83°
60°
18
Hist. Avg.
82°
59°
19
Hist. Avg.
82°
59°
20
Hist. Avg.
82°
58°
21
Hist. Avg.
81°
58°
22
Hist. Avg.
81°
58°
23
Hist. Avg.
81°
57°
24
Hist. Avg.
80°
57°
25
Hist. Avg.
80°
56°
26
Hist. Avg.
80°
56°
27
Hist. Avg.
79°
55°
28
Hist. Avg.
79°
55°
29
Hist. Avg.
79°
54°
30
Hist. Avg.
78°
54°
1
Hist. Avg.
78°
53°
2
Hist. Avg.
78°
53°
3
Hist. Avg.
77°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Merchant
Merchant's September 2026 forecast shows daily high temperatures ranging from 80° to 87°, with overnight lows between 59° and 65°. The average high for September is 84° with an average low of 62°. 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 Merchant. See also: October | November | December.
