S
M
T
W
T
F
S
30
69°
64°
31
N/A
1
74°
64°
2
72°
66°
3
75°
60°
4
73°
59°
5
72°
58°
6
71°
58°
7
72°
56°
8
69°
58°
9
71°
59°
10
70°
58°
11
68°
57°
12
67°
53°
13
65°
52°
14
64°
53°
15
67°
58°
16
72°
58°
17
71°
55°
18
63°
54°
19
65°
56°
20
71°
58°
21
71°
58°
22
72°
57°
23
72°
56°
24
70°
55°
25
70°
55°
26
69°
54°
27
70°
55°
28
70°
53°
29
68°
52°
30
62°
51°
1
61°
52°
2
66°
53°
3
68°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Port Hope
Port Hope's September 2026 forecast shows daily high temperatures ranging from 61° to 75°, with overnight lows between 51° and 66°. The average high for September is 69° with an average low of 56°. 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. See also: October | November | December.
