S
M
T
W
T
F
S
30
89°
50°
31
88°
49°
1
89°
50°
2
90°
50°
3
92°
49°
4
92°
51°
5
91°
51°
6
92°
52°
7
93°
52°
8
93°
51°
9
91°
51°
10
87°
50°
11
86°
52°
12
90°
52°
13
91°
53°
14
92°
52°
15
91°
51°
16
90°
50°
17
89°
51°
18
90°
51°
19
91°
52°
20
85°
47°
21
Hist. Avg.
88°
48°
22
Hist. Avg.
88°
48°
23
Hist. Avg.
88°
48°
24
Hist. Avg.
88°
48°
25
Hist. Avg.
88°
48°
26
Hist. Avg.
87°
48°
27
Hist. Avg.
87°
48°
28
Hist. Avg.
87°
48°
29
Hist. Avg.
87°
47°
30
Hist. Avg.
87°
47°
1
Hist. Avg.
87°
47°
2
Hist. Avg.
86°
47°
3
Hist. Avg.
86°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Ben Lomond
Ben Lomond's September 2026 forecast shows daily high temperatures ranging from 85° to 93°, with overnight lows between 47° and 53°. The average high for September is 90° with an average low of 51°. 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 Ben Lomond. See also: October | November | December.
