S
M
T
W
T
F
S
30
75°
58°
31
76°
59°
1
81°
54°
2
75°
53°
3
76°
54°
4
75°
52°
5
75°
51°
6
78°
57°
7
79°
56°
8
76°
57°
9
80°
57°
10
76°
56°
11
77°
56°
12
79°
55°
13
79°
56°
14
78°
56°
15
79°
55°
16
78°
48°
17
74°
51°
18
69°
55°
19
76°
54°
20
77°
54°
21
76°
52°
22
75°
46°
23
73°
52°
24
71°
51°
25
Hist. Avg.
71°
48°
26
Hist. Avg.
70°
47°
27
Hist. Avg.
70°
47°
28
Hist. Avg.
70°
47°
29
Hist. Avg.
69°
46°
30
Hist. Avg.
69°
46°
1
Hist. Avg.
68°
46°
2
Hist. Avg.
68°
45°
3
Hist. Avg.
67°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Watchtower
Watchtower's September 2026 forecast shows daily high temperatures ranging from 69° to 81°, with overnight lows between 46° and 59°. The average high for September is 76° 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 Watchtower. See also: October | November | December.
