S
M
T
W
T
F
S
30
92°
77°
31
77°
77°
1
96°
75°
2
97°
82°
3
96°
73°
4
96°
77°
5
93°
73°
6
92°
71°
7
91°
74°
8
97°
70°
9
84°
58°
10
83°
63°
11
88°
62°
12
84°
61°
13
78°
58°
14
74°
54°
15
73°
55°
16
73°
55°
17
80°
57°
18
75°
57°
19
70°
55°
20
75°
52°
21
81°
59°
22
80°
58°
23
80°
59°
24
78°
59°
25
71°
58°
26
72°
58°
27
77°
57°
28
75°
58°
29
72°
57°
30
75°
50°
1
64°
46°
2
63°
43°
3
62°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Richfield
Richfield's September 2026 forecast shows daily high temperatures ranging from 62° to 97°, with overnight lows between 41° and 74°. The average high for September is 77° with an average low of 57°. 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 Richfield. See also: October | November | December.
