S
M
T
W
T
F
S
30
79°
54°
31
75°
52°
1
73°
48°
2
69°
48°
3
64°
58°
4
77°
61°
5
69°
53°
6
66°
51°
7
77°
45°
8
74°
46°
9
64°
42°
10
80°
60°
11
71°
51°
12
69°
44°
13
64°
56°
14
69°
53°
15
69°
43°
16
66°
47°
17
69°
53°
18
74°
53°
19
64°
44°
20
59°
41°
21
68°
48°
22
65°
44°
23
64°
40°
24
69°
36°
25
76°
55°
26
64°
53°
27
59°
54°
28
58°
54°
29
62°
54°
30
67°
48°
1
70°
52°
2
69°
50°
3
66°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Blue Hill
Blue Hill's September 2026 forecast shows daily high temperatures ranging from 58° to 76°, with overnight lows between 48° and 55°. The average high for September is 66° with an average low of 52°. 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 Blue Hill. See also: October | November | December.
