S
M
T
W
T
F
S
30
81°
68°
31
91°
68°
1
90°
68°
2
88°
66°
3
82°
69°
4
85°
70°
5
82°
62°
6
82°
61°
7
80°
56°
8
77°
59°
9
84°
61°
10
78°
53°
11
81°
51°
12
79°
54°
13
70°
45°
14
66°
40°
15
75°
54°
16
74°
50°
17
69°
57°
18
63°
56°
19
64°
56°
20
67°
49°
21
61°
46°
22
60°
42°
23
64°
44°
24
67°
49°
25
70°
49°
26
71°
49°
27
69°
50°
28
69°
50°
29
67°
47°
30
69°
48°
1
69°
50°
2
66°
43°
3
63°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in New Lisbon
New Lisbon's September 2026 forecast shows daily high temperatures ranging from 60° to 71°, with overnight lows between 42° and 50°. The average high for September is 67° with an average low of 47°. 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 Lisbon. See also: October | November | December.
