S
M
T
W
T
F
S
30
93°
71°
31
94°
72°
1
92°
72°
2
92°
67°
3
88°
64°
4
87°
64°
5
87°
67°
6
88°
69°
7
88°
69°
8
91°
71°
9
93°
70°
10
89°
67°
11
89°
67°
12
90°
70°
13
91°
64°
14
92°
62°
15
85°
61°
16
86°
63°
17
85°
62°
18
86°
63°
19
89°
66°
20
90°
65°
21
90°
67°
22
89°
67°
23
84°
66°
24
84°
65°
25
85°
64°
26
88°
63°
27
88°
64°
28
87°
64°
29
88°
63°
30
88°
64°
1
87°
63°
2
88°
63°
3
88°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Richwood
Richwood's September 2026 forecast shows daily high temperatures ranging from 84° to 94°, with overnight lows between 56° and 72°. The average high for September is 89° 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 Richwood. See also: October | November | December.
