S
M
T
W
T
F
S
30
103°
74°
31
103°
72°
1
102°
71°
2
101°
72°
3
101°
72°
4
102°
71°
5
101°
72°
6
101°
73°
7
102°
73°
8
100°
72°
9
99°
73°
10
100°
75°
11
101°
74°
12
103°
73°
13
103°
73°
14
102°
75°
15
104°
75°
16
102°
74°
17
102°
73°
18
104°
72°
19
103°
73°
20
102°
74°
21
102°
75°
22
104°
74°
23
104°
74°
24
102°
72°
25
98°
71°
26
93°
68°
27
95°
67°
28
94°
69°
29
96°
68°
30
94°
67°
1
92°
66°
2
92°
68°
3
91°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Borrego Springs
Borrego Springs's September 2026 forecast shows daily high temperatures ranging from 91° to 104°, with overnight lows between 66° and 75°. The average high for September is 100° with an average low of 72°. 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 Borrego Springs. See also: October | November | December.
