S
M
T
W
T
F
S
30
78°
55°
31
77°
54°
1
76°
56°
2
77°
57°
3
77°
54°
4
78°
54°
5
77°
56°
6
78°
59°
7
76°
53°
8
77°
52°
9
73°
58°
10
78°
51°
11
75°
50°
12
74°
50°
13
74°
52°
14
76°
56°
15
80°
56°
16
81°
57°
17
80°
56°
18
80°
54°
19
79°
47°
20
72°
47°
21
70°
52°
22
71°
53°
23
75°
54°
24
76°
55°
25
77°
47°
26
76°
44°
27
73°
46°
28
68°
45°
29
68°
45°
30
67°
50°
1
68°
52°
2
Hist. Avg.
72°
48°
3
Hist. Avg.
71°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Whitewater
Whitewater's September 2026 forecast shows daily high temperatures ranging from 67° to 81°, with overnight lows between 44° and 59°. The average high for September is 75° with an average low of 52°. 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 Whitewater. See also: October | November | December.
