S
M
T
W
T
F
S
30
65°
52°
31
66°
47°
1
65°
48°
2
66°
47°
3
62°
47°
4
65°
48°
5
63°
47°
6
63°
48°
7
64°
48°
8
63°
47°
9
63°
48°
10
64°
52°
11
63°
48°
12
64°
49°
13
66°
53°
14
68°
49°
15
64°
51°
16
68°
51°
17
68°
48°
18
Hist. Avg.
62°
43°
19
Hist. Avg.
62°
44°
20
Hist. Avg.
62°
44°
21
Hist. Avg.
62°
44°
22
Hist. Avg.
62°
44°
23
Hist. Avg.
62°
44°
24
Hist. Avg.
63°
44°
25
Hist. Avg.
63°
44°
26
Hist. Avg.
63°
45°
27
Hist. Avg.
63°
45°
28
Hist. Avg.
63°
45°
29
Hist. Avg.
63°
45°
30
Hist. Avg.
64°
45°
1
Hist. Avg.
64°
45°
2
Hist. Avg.
64°
45°
3
Hist. Avg.
64°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Mentone
Mentone's September 2026 forecast shows daily high temperatures ranging from 62° to 68°, with overnight lows between 47° and 53°. The average high for September is 65° with an average low of 49°. 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 Mentone. See also: October | November | December.
