S
M
T
W
T
F
S
30
75°
57°
31
79°
52°
1
70°
60°
2
67°
60°
3
69°
59°
4
79°
57°
5
71°
52°
6
73°
53°
7
74°
56°
8
73°
53°
9
76°
58°
10
74°
55°
11
71°
54°
12
72°
56°
13
72°
52°
14
71°
48°
15
72°
52°
16
74°
56°
17
76°
55°
18
68°
51°
19
70°
48°
20
72°
53°
21
75°
56°
22
76°
56°
23
76°
54°
24
74°
53°
25
74°
52°
26
75°
54°
27
74°
53°
28
74°
52°
29
71°
48°
30
63°
45°
1
62°
42°
2
64°
51°
3
71°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Laconia
Laconia's September 2026 forecast shows daily high temperatures ranging from 62° to 79°, with overnight lows between 42° and 60°. The average high for September is 72° with an average low of 53°. 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 Laconia. See also: October | November | December.
