S
M
T
W
T
F
S
30
88°
70°
31
90°
69°
1
91°
69°
2
91°
68°
3
90°
69°
4
87°
68°
5
86°
64°
6
86°
63°
7
87°
65°
8
90°
68°
9
89°
68°
10
90°
67°
11
89°
67°
12
88°
66°
13
88°
66°
14
89°
64°
15
89°
65°
16
89°
66°
17
Hist. Avg.
87°
64°
18
Hist. Avg.
86°
64°
19
Hist. Avg.
86°
64°
20
Hist. Avg.
86°
63°
21
Hist. Avg.
85°
63°
22
Hist. Avg.
85°
62°
23
Hist. Avg.
85°
62°
24
Hist. Avg.
84°
61°
25
Hist. Avg.
84°
61°
26
Hist. Avg.
84°
60°
27
Hist. Avg.
83°
60°
28
Hist. Avg.
83°
60°
29
Hist. Avg.
82°
59°
30
Hist. Avg.
82°
59°
1
Hist. Avg.
82°
58°
2
Hist. Avg.
81°
58°
3
Hist. Avg.
81°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in White River
White River's September 2026 forecast shows daily high temperatures ranging from 86° to 91°, with overnight lows between 63° and 70°. The average high for September is 89° with an average low of 67°. 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 White River. See also: October | November | December.
