S
M
T
W
T
F
S
30
93°
67°
31
94°
70°
1
94°
69°
2
92°
68°
3
90°
67°
4
88°
68°
5
89°
69°
6
90°
70°
7
93°
70°
8
93°
69°
9
92°
69°
10
93°
70°
11
91°
69°
12
93°
69°
13
92°
68°
14
92°
66°
15
87°
66°
16
88°
67°
17
90°
68°
18
85°
67°
19
84°
66°
20
88°
67°
21
90°
68°
22
85°
67°
23
86°
62°
24
90°
61°
25
83°
61°
26
84°
60°
27
86°
59°
28
Hist. Avg.
85°
60°
29
Hist. Avg.
85°
60°
30
Hist. Avg.
84°
59°
1
Hist. Avg.
84°
59°
2
Hist. Avg.
84°
59°
3
Hist. Avg.
84°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Spring Branch
Spring Branch's September 2026 forecast shows daily high temperatures ranging from 83° to 94°, with overnight lows between 59° and 70°. The average high for September is 89° with an average low of 67°. 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 Spring Branch. See also: October | November | December.
