S
M
T
W
T
F
S
30
84°
64°
31
86°
67°
1
85°
65°
2
88°
66°
3
89°
66°
4
87°
64°
5
79°
62°
6
76°
59°
7
75°
57°
8
72°
57°
9
76°
55°
10
76°
58°
11
75°
56°
12
72°
52°
13
75°
51°
14
74°
52°
15
75°
56°
16
68°
56°
17
68°
55°
18
71°
53°
19
72°
54°
20
74°
54°
21
74°
50°
22
73°
51°
23
74°
54°
24
75°
54°
25
74°
53°
26
73°
52°
27
72°
53°
28
69°
52°
29
73°
51°
30
72°
50°
1
69°
47°
2
68°
46°
3
71°
50°
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 68° to 89°, with overnight lows between 46° and 66°. The average high for September is 75° with an average low of 55°. 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.
