S
M
T
W
T
F
S
30
94°
62°
31
92°
67°
1
96°
67°
2
98°
63°
3
97°
62°
4
92°
61°
5
92°
61°
6
91°
60°
7
90°
59°
8
88°
60°
9
89°
62°
10
93°
66°
11
95°
66°
12
96°
65°
13
97°
62°
14
96°
59°
15
93°
58°
16
90°
60°
17
90°
62°
18
93°
62°
19
94°
64°
20
94°
63°
21
93°
63°
22
87°
60°
23
86°
57°
24
84°
56°
25
84°
55°
26
82°
57°
27
82°
58°
28
86°
57°
29
85°
55°
30
83°
55°
1
Hist. Avg.
85°
58°
2
Hist. Avg.
85°
57°
3
Hist. Avg.
85°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Richgrove
Richgrove's September 2026 forecast shows daily high temperatures ranging from 82° to 98°, with overnight lows between 55° and 67°. The average high for September is 91° with an average low of 61°. 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 Richgrove. See also: October | November | December.
