S
M
T
W
T
F
S
30
78°
60°
31
82°
61°
1
82°
60°
2
81°
61°
3
82°
54°
4
75°
52°
5
74°
56°
6
76°
59°
7
80°
60°
8
80°
59°
9
78°
56°
10
74°
58°
11
80°
57°
12
79°
59°
13
79°
58°
14
78°
58°
15
79°
57°
16
79°
57°
17
76°
56°
18
78°
50°
19
70°
48°
20
70°
46°
21
68°
46°
22
69°
48°
23
71°
50°
24
71°
46°
25
68°
46°
26
68°
52°
27
67°
51°
28
73°
52°
29
72°
51°
30
74°
52°
1
71°
50°
2
73°
50°
3
66°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Kingwood
Kingwood's September 2026 forecast shows daily high temperatures ranging from 66° to 82°, with overnight lows between 46° and 61°. The average high for September is 75° with an average low of 54°. 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 Kingwood. See also: October | November | December.