S
M
T
W
T
F
S
30
95°
73°
31
95°
72°
1
94°
72°
2
94°
72°
3
93°
71°
4
94°
72°
5
93°
71°
6
93°
71°
7
92°
70°
8
93°
70°
9
93°
71°
10
92°
71°
11
94°
70°
12
93°
71°
13
93°
70°
14
92°
68°
15
92°
67°
16
91°
66°
17
92°
67°
18
92°
60°
19
86°
56°
20
81°
56°
21
84°
58°
22
87°
60°
23
88°
63°
24
88°
63°
25
87°
62°
26
87°
62°
27
86°
60°
28
86°
55°
29
77°
55°
30
80°
60°
1
84°
60°
2
85°
59°
3
85°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Ben Lomond
Ben Lomond's September 2026 forecast shows daily high temperatures ranging from 77° to 95°, with overnight lows between 55° and 73°. The average high for September is 89° with an average low of 65°. 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.
