S
M
T
W
T
F
S
26
82°
70°
27
82°
68°
28
82°
67°
29
83°
70°
30
82°
71°
31
86°
72°
1
84°
66°
2
83°
66°
3
82°
67°
4
81°
66°
5
81°
66°
6
82°
65°
7
81°
65°
8
81°
67°
9
82°
70°
10
81°
72°
11
81°
72°
12
82°
71°
13
84°
71°
14
85°
66°
15
85°
66°
16
81°
69°
17
83°
67°
18
84°
66°
19
80°
65°
20
79°
64°
21
80°
69°
22
80°
65°
23
79°
70°
24
79°
70°
25
80°
69°
26
83°
71°
27
83°
71°
28
84°
70°
29
84°
70°
30
83°
64°
31
79°
64°
1
78°
65°
2
78°
65°
3
79°
68°
4
77°
63°
5
82°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in New Gretna
New Gretna's August 2026 forecast shows daily high temperatures ranging from 77° to 86°, with overnight lows between 63° and 72°. The average high for August is 82° with an average low of 68°. 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 New Gretna. See also: September | October | November.
