S
M
T
W
T
F
S
30
69°
56°
31
70°
54°
1
68°
54°
2
67°
55°
3
67°
55°
4
68°
53°
5
67°
52°
6
66°
50°
7
66°
54°
8
65°
54°
9
65°
52°
10
66°
53°
11
66°
54°
12
66°
54°
13
65°
52°
14
66°
53°
15
66°
54°
16
66°
54°
17
65°
52°
18
61°
52°
19
61°
53°
20
Hist. Avg.
63°
48°
21
Hist. Avg.
63°
48°
22
Hist. Avg.
62°
48°
23
Hist. Avg.
62°
48°
24
Hist. Avg.
62°
48°
25
Hist. Avg.
62°
48°
26
Hist. Avg.
62°
47°
27
Hist. Avg.
61°
47°
28
Hist. Avg.
61°
47°
29
Hist. Avg.
61°
47°
30
Hist. Avg.
61°
47°
1
Hist. Avg.
61°
47°
2
Hist. Avg.
61°
47°
3
Hist. Avg.
60°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Whitby
Whitby's September 2026 forecast shows daily high temperatures ranging from 61° to 70°, with overnight lows between 50° and 56°. The average high for September is 66° with an average low of 53°. 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 Whitby. See also: October | November | December.
