S
M
T
W
T
F
S
30
90°
58°
31
93°
61°
1
94°
62°
2
94°
62°
3
93°
61°
4
91°
63°
5
93°
60°
6
88°
62°
7
93°
60°
8
92°
61°
9
92°
60°
10
91°
60°
11
92°
58°
12
92°
57°
13
91°
59°
14
92°
60°
15
92°
61°
16
91°
59°
17
90°
52°
18
87°
54°
19
90°
58°
20
89°
58°
21
90°
54°
22
89°
48°
23
88°
57°
24
88°
50°
25
82°
49°
26
Hist. Avg.
78°
58°
27
Hist. Avg.
78°
58°
28
Hist. Avg.
78°
57°
29
Hist. Avg.
78°
57°
30
Hist. Avg.
78°
56°
1
Hist. Avg.
78°
56°
2
Hist. Avg.
77°
56°
3
Hist. Avg.
77°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Salt Flat
Salt Flat's September 2026 forecast shows daily high temperatures ranging from 82° to 94°, with overnight lows between 48° and 63°. The average high for September is 91° with an average low of 58°. 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 Salt Flat. See also: October | November | December.