S
M
T
W
T
F
S
30
88°
71°
31
90°
69°
1
93°
69°
2
97°
72°
3
97°
73°
4
94°
73°
5
93°
70°
6
88°
71°
7
98°
69°
8
92°
71°
9
82°
63°
10
86°
57°
11
90°
67°
12
72°
55°
13
64°
59°
14
90°
60°
15
71°
58°
16
66°
60°
17
72°
65°
18
78°
57°
19
72°
54°
20
71°
53°
21
72°
51°
22
72°
51°
23
74°
52°
24
77°
55°
25
78°
55°
26
74°
47°
27
80°
56°
28
75°
55°
29
71°
53°
30
67°
50°
1
72°
53°
2
73°
54°
3
77°
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 64° to 90°, with overnight lows between 47° and 65°. The average high for September is 74° with an average low of 55°. 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.
