S
M
T
W
T
F
S
30
70°
59°
31
65°
51°
1
55°
49°
2
59°
49°
3
69°
51°
4
65°
55°
5
56°
50°
6
52°
49°
7
66°
53°
8
55°
46°
9
55°
48°
10
62°
57°
11
70°
50°
12
55°
43°
13
65°
53°
14
69°
52°
15
65°
51°
16
64°
49°
17
63°
46°
18
62°
48°
19
66°
47°
20
65°
43°
21
57°
44°
22
56°
45°
23
58°
46°
24
59°
45°
25
55°
44°
26
58°
44°
27
59°
42°
28
53°
41°
29
58°
44°
30
60°
45°
1
61°
44°
2
61°
44°
3
59°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lewisporte
Lewisporte's September 2026 forecast shows daily high temperatures ranging from 53° to 70°, with overnight lows between 41° and 57°. The average high for September is 61° 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 Lewisporte. See also: October | November | December.
