S
M
T
W
T
F
S
30
93°
61°
31
97°
64°
1
97°
68°
2
95°
70°
3
96°
72°
4
98°
70°
5
99°
70°
6
101°
70°
7
97°
67°
8
96°
70°
9
95°
71°
10
93°
70°
11
92°
68°
12
92°
69°
13
89°
65°
14
87°
64°
15
86°
62°
16
82°
58°
17
85°
62°
18
78°
61°
19
81°
62°
20
84°
62°
21
85°
63°
22
84°
62°
23
85°
61°
24
84°
61°
25
83°
60°
26
80°
55°
27
73°
49°
28
73°
48°
29
71°
48°
30
76°
53°
1
78°
56°
2
80°
51°
3
69°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Watts
Watts's September 2026 forecast shows daily high temperatures ranging from 69° to 101°, with overnight lows between 48° and 72°. The average high for September is 86° with an average low of 62°. 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 Watts. See also: October | November | December.