S
M
T
W
T
F
S
30
58°
46°
31
57°
42°
1
57°
42°
2
55°
41°
3
56°
41°
4
56°
42°
5
55°
44°
6
57°
46°
7
58°
42°
8
59°
41°
9
56°
40°
10
55°
46°
11
57°
47°
12
60°
46°
13
60°
41°
14
59°
39°
15
59°
38°
16
53°
39°
17
53°
43°
18
56°
44°
19
57°
42°
20
56°
43°
21
51°
40°
22
52°
38°
23
50°
43°
24
55°
43°
25
55°
40°
26
51°
36°
27
53°
38°
28
48°
37°
29
47°
34°
30
47°
33°
1
46°
32°
2
45°
33°
3
45°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Port Hope Simpson
Port Hope Simpson's September 2026 forecast shows daily high temperatures ranging from 45° to 60°, with overnight lows between 32° and 47°. The average high for September is 54° with an average low of 40°. 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 Port Hope Simpson. See also: October | November | December.
