S
M
T
W
T
F
S
30
93°
67°
31
94°
72°
1
90°
63°
2
92°
67°
3
91°
65°
4
89°
63°
5
88°
63°
6
88°
62°
7
89°
60°
8
88°
60°
9
86°
61°
10
85°
60°
11
83°
59°
12
84°
61°
13
85°
60°
14
86°
58°
15
84°
57°
16
90°
55°
17
85°
58°
18
78°
57°
19
78°
56°
20
79°
57°
21
78°
56°
22
78°
56°
23
77°
55°
24
77°
56°
25
78°
55°
26
78°
51°
27
73°
47°
28
73°
47°
29
74°
46°
30
76°
48°
1
75°
51°
2
79°
51°
3
74°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Marfa
Marfa's September 2026 forecast shows daily high temperatures ranging from 73° to 91°, with overnight lows between 46° and 65°. The average high for September is 81° with an average low of 56°. 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 Marfa. See also: October | November | December.
