S
M
T
W
T
F
S
30
90°
70°
31
86°
69°
1
86°
66°
2
86°
65°
3
85°
64°
4
84°
64°
5
85°
65°
6
86°
67°
7
89°
69°
8
89°
69°
9
85°
68°
10
89°
69°
11
89°
69°
12
88°
68°
13
89°
69°
14
89°
68°
15
88°
67°
16
88°
68°
17
89°
67°
18
88°
66°
19
85°
65°
20
86°
66°
21
87°
60°
22
84°
59°
23
81°
63°
24
81°
63°
25
84°
58°
26
Hist. Avg.
85°
61°
27
Hist. Avg.
85°
60°
28
Hist. Avg.
85°
60°
29
Hist. Avg.
84°
60°
30
Hist. Avg.
84°
59°
1
Hist. Avg.
84°
59°
2
Hist. Avg.
83°
58°
3
Hist. Avg.
83°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Watson
Watson's September 2026 forecast shows daily high temperatures ranging from 81° to 90°, with overnight lows between 58° and 70°. The average high for September is 87° with an average low of 66°. 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 Watson. See also: October | November | December.
