S
M
T
W
T
F
S
30
81°
56°
31
82°
60°
1
84°
61°
2
86°
61°
3
86°
60°
4
85°
60°
5
86°
59°
6
85°
60°
7
80°
58°
8
79°
55°
9
79°
55°
10
77°
57°
11
77°
57°
12
76°
60°
13
79°
58°
14
78°
55°
15
77°
53°
16
Hist. Avg.
81°
50°
17
Hist. Avg.
81°
50°
18
Hist. Avg.
80°
50°
19
Hist. Avg.
80°
49°
20
Hist. Avg.
80°
49°
21
Hist. Avg.
79°
49°
22
Hist. Avg.
79°
48°
23
Hist. Avg.
79°
48°
24
Hist. Avg.
78°
48°
25
Hist. Avg.
78°
48°
26
Hist. Avg.
78°
47°
27
Hist. Avg.
77°
47°
28
Hist. Avg.
77°
47°
29
Hist. Avg.
77°
46°
30
Hist. Avg.
76°
46°
1
Hist. Avg.
76°
46°
2
Hist. Avg.
76°
45°
3
Hist. Avg.
75°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Mount Laguna
Mount Laguna's September 2026 forecast shows daily high temperatures ranging from 76° to 86°, with overnight lows between 53° and 61°. The average high for September is 81° with an average low of 58°. 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 Mount Laguna. See also: October | November | December.
