S
M
T
W
T
F
S
30
93°
76°
31
93°
75°
1
92°
76°
2
93°
75°
3
91°
75°
4
89°
74°
5
89°
75°
6
90°
75°
7
91°
72°
8
93°
73°
9
92°
74°
10
90°
73°
11
91°
74°
12
90°
73°
13
90°
73°
14
92°
72°
15
90°
73°
16
90°
73°
17
89°
72°
18
89°
73°
19
90°
73°
20
89°
72°
21
90°
72°
22
90°
71°
23
91°
72°
24
91°
72°
25
89°
71°
26
89°
72°
27
88°
72°
28
88°
71°
29
89°
70°
30
88°
71°
1
87°
70°
2
89°
71°
3
89°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Four Corners
Four Corners's September 2026 forecast shows daily high temperatures ranging from 87° to 93°, with overnight lows between 70° and 76°. The average high for September is 90° with an average low of 73°. 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 Four Corners. See also: October | November | December.
