S
M
T
W
T
F
S
26
88°
50°
27
82°
52°
28
86°
43°
29
84°
43°
30
82°
43°
31
88°
41°
1
100°
53°
2
94°
48°
3
75°
42°
4
80°
45°
5
87°
51°
6
87°
51°
7
89°
52°
8
88°
51°
9
84°
53°
10
84°
52°
11
86°
53°
12
82°
53°
13
83°
52°
14
81°
48°
15
85°
53°
16
76°
52°
17
76°
48°
18
79°
52°
19
83°
52°
20
83°
51°
21
76°
50°
22
76°
50°
23
78°
51°
24
80°
50°
25
72°
43°
26
76°
48°
27
82°
51°
28
81°
51°
29
82°
50°
30
79°
51°
31
76°
50°
1
78°
49°
2
71°
49°
3
69°
47°
4
72°
47°
5
77°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Gardiner
Gardiner's August 2026 forecast shows daily high temperatures ranging from 69° to 100°, with overnight lows between 42° and 53°. The average high for August is 81° with an average low of 50°. 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 Gardiner. See also: September | October | November.