S
M
T
W
T
F
S
26
78°
60°
27
77°
62°
28
79°
61°
29
78°
60°
30
76°
58°
31
77°
61°
1
79°
62°
2
80°
59°
3
72°
57°
4
72°
54°
5
73°
54°
6
71°
55°
7
72°
55°
8
73°
57°
9
71°
54°
10
73°
59°
11
75°
55°
12
73°
60°
13
77°
61°
14
78°
60°
15
75°
57°
16
76°
60°
17
77°
59°
18
76°
58°
19
70°
57°
20
70°
52°
21
71°
52°
22
72°
58°
23
74°
58°
24
70°
55°
25
69°
57°
26
69°
58°
27
70°
51°
28
68°
52°
29
71°
54°
30
73°
53°
31
72°
54°
1
71°
56°
2
69°
55°
3
72°
54°
4
72°
51°
5
69°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Greffen
Greffen's August 2026 forecast shows daily high temperatures ranging from 68° to 80°, with overnight lows between 51° and 62°. The average high for August is 73° with an average low of 57°. 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 Greffen. See also: September | October | November.
