S
M
T
W
T
F
S
30
90°
57°
31
90°
55°
1
91°
55°
2
89°
54°
3
88°
53°
4
87°
52°
5
87°
52°
6
88°
54°
7
87°
54°
8
88°
55°
9
88°
53°
10
87°
53°
11
87°
54°
12
88°
59°
13
89°
60°
14
93°
59°
15
93°
58°
16
92°
57°
17
92°
59°
18
91°
60°
19
93°
59°
20
92°
57°
21
91°
55°
22
90°
54°
23
89°
55°
24
88°
54°
25
90°
56°
26
89°
52°
27
86°
52°
28
Hist. Avg.
86°
54°
29
Hist. Avg.
86°
53°
30
Hist. Avg.
85°
53°
1
Hist. Avg.
85°
53°
2
Hist. Avg.
85°
53°
3
Hist. Avg.
84°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Merced Falls
Merced Falls's September 2026 forecast shows daily high temperatures ranging from 86° to 93°, with overnight lows between 52° and 60°. The average high for September is 89° 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 Merced Falls. See also: October | November | December.
