S
M
T
W
T
F
S
30
80°
48°
31
86°
45°
1
88°
62°
2
80°
55°
3
75°
52°
4
71°
51°
5
77°
52°
6
80°
58°
7
80°
56°
8
80°
55°
9
84°
57°
10
85°
55°
11
86°
57°
12
85°
57°
13
83°
54°
14
81°
51°
15
84°
58°
16
81°
56°
17
72°
51°
18
72°
49°
19
77°
53°
20
75°
55°
21
71°
49°
22
70°
50°
23
73°
53°
24
68°
50°
25
68°
48°
26
70°
49°
27
69°
54°
28
69°
53°
29
68°
49°
30
72°
51°
1
72°
53°
2
66°
52°
3
65°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Benton City
Benton City's September 2026 forecast shows daily high temperatures ranging from 65° to 88°, with overnight lows between 48° and 62°. The average high for September is 76° with an average low of 53°. 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 Benton City. See also: October | November | December.
