S
M
T
W
T
F
S
26
69°
56°
27
67°
56°
28
69°
57°
29
69°
57°
30
70°
56°
31
71°
58°
1
71°
56°
2
67°
55°
3
64°
54°
4
65°
55°
5
65°
53°
6
64°
56°
7
64°
55°
8
64°
55°
9
65°
54°
10
65°
52°
11
65°
51°
12
66°
51°
13
65°
52°
14
65°
50°
15
64°
55°
16
66°
55°
17
68°
54°
18
68°
55°
19
67°
52°
20
68°
50°
21
66°
54°
22
68°
53°
23
65°
54°
24
66°
51°
25
65°
50°
26
63°
52°
27
63°
49°
28
65°
54°
29
67°
54°
30
67°
49°
31
66°
52°
1
66°
52°
2
63°
51°
3
65°
52°
4
64°
53°
5
63°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Greenside
Greenside's August 2026 forecast shows daily high temperatures ranging from 63° to 71°, with overnight lows between 49° and 58°. The average high for August 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 August weather will actually feel in Greenside. See also: September | October | November.