S
M
T
W
T
F
S
30
63°
51°
31
65°
53°
1
74°
52°
2
78°
60°
3
81°
63°
4
66°
58°
5
85°
60°
6
78°
55°
7
65°
59°
8
62°
56°
9
N/A
10
63°
52°
11
67°
49°
12
70°
49°
13
75°
48°
14
78°
51°
15
80°
55°
16
67°
51°
17
66°
51°
18
69°
50°
19
80°
55°
20
80°
57°
21
77°
56°
22
75°
54°
23
73°
54°
24
68°
56°
25
68°
56°
26
70°
55°
27
71°
56°
28
75°
57°
29
76°
55°
30
73°
56°
1
70°
56°
2
73°
57°
3
72°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in New Lambton
New Lambton's September 2026 forecast shows daily high temperatures ranging from 63° to 80°, with overnight lows between 48° and 57°. The average high for September is 72° 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 New Lambton. See also: October | November | December.
