S
M
T
W
T
F
S
30
92°
67°
31
89°
63°
1
91°
53°
2
89°
51°
3
85°
56°
4
86°
56°
5
88°
65°
6
89°
68°
7
93°
66°
8
90°
65°
9
87°
64°
10
87°
65°
11
91°
64°
12
89°
65°
13
91°
64°
14
90°
61°
15
93°
66°
16
93°
65°
17
92°
64°
18
89°
59°
19
86°
59°
20
87°
60°
21
89°
62°
22
90°
62°
23
90°
61°
24
87°
57°
25
81°
55°
26
81°
56°
27
80°
55°
28
81°
55°
29
82°
56°
30
83°
57°
1
82°
56°
2
84°
61°
3
88°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Murrieta
Murrieta's September 2026 forecast shows daily high temperatures ranging from 80° to 93°, with overnight lows between 51° and 68°. The average high for September is 87° with an average low of 60°. 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 Murrieta. See also: October | November | December.
