S
M
T
W
T
F
S
30
67°
54°
31
64°
53°
1
60°
52°
2
63°
53°
3
64°
51°
4
66°
52°
5
66°
53°
6
67°
53°
7
64°
53°
8
74°
56°
9
73°
54°
10
75°
56°
11
71°
56°
12
74°
55°
13
75°
56°
14
72°
55°
15
71°
54°
16
71°
53°
17
73°
55°
18
72°
54°
19
74°
53°
20
75°
54°
21
70°
56°
22
68°
56°
23
67°
54°
24
68°
56°
25
69°
56°
26
70°
55°
27
70°
55°
28
71°
56°
29
70°
56°
30
69°
54°
1
67°
51°
2
66°
50°
3
65°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Laguna Seca
Laguna Seca's September 2026 forecast shows daily high temperatures ranging from 65° to 75°, with overnight lows between 50° and 56°. The average high for September is 71° with an average low of 54°. 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 Laguna Seca. See also: October | November | December.
