S
M
T
W
T
F
S
26
78°
56°
27
78°
59°
28
79°
56°
29
78°
55°
30
79°
63°
31
84°
63°
1
86°
62°
2
85°
63°
3
85°
62°
4
84°
55°
5
78°
54°
6
77°
52°
7
77°
54°
8
78°
54°
9
77°
55°
10
78°
60°
11
79°
60°
12
83°
61°
13
84°
62°
14
85°
61°
15
85°
54°
16
79°
53°
17
80°
53°
18
79°
56°
19
81°
56°
20
76°
53°
21
77°
53°
22
80°
58°
23
81°
60°
24
83°
59°
25
78°
52°
26
76°
52°
27
78°
59°
28
74°
59°
29
82°
60°
30
84°
58°
31
81°
56°
1
75°
57°
2
77°
51°
3
73°
56°
4
74°
58°
5
77°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Sparta
Sparta's August 2026 forecast shows daily high temperatures ranging from 73° to 86°, with overnight lows between 51° and 63°. The average high for August is 80° 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 Sparta. See also: September | October | November.