S
M
T
W
T
F
S
26
85°
70°
27
87°
71°
28
86°
74°
29
89°
71°
30
83°
73°
31
83°
73°
1
84°
72°
2
84°
73°
3
86°
74°
4
88°
74°
5
88°
73°
6
84°
71°
7
86°
73°
8
89°
73°
9
85°
74°
10
89°
73°
11
85°
72°
12
85°
73°
13
86°
73°
14
87°
72°
15
83°
70°
16
81°
70°
17
81°
72°
18
82°
73°
19
83°
73°
20
84°
72°
21
85°
72°
22
83°
71°
23
84°
71°
24
89°
72°
25
88°
72°
26
88°
71°
27
87°
70°
28
84°
71°
29
81°
68°
30
85°
65°
31
80°
66°
1
79°
70°
2
79°
71°
3
85°
70°
4
86°
71°
5
85°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Great Mills
Great Mills's August 2026 forecast shows daily high temperatures ranging from 79° to 89°, with overnight lows between 65° and 74°. The average high for August is 85° with an average low of 71°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Great Mills. See also: September | October | November.