S
M
T
W
T
F
S
26
95°
68°
27
97°
70°
28
86°
63°
29
90°
64°
30
88°
68°
31
72°
63°
1
82°
61°
2
82°
61°
3
84°
63°
4
75°
59°
5
77°
54°
6
79°
54°
7
79°
61°
8
81°
52°
9
82°
63°
10
82°
64°
11
84°
64°
12
86°
64°
13
75°
64°
14
81°
63°
15
81°
66°
16
79°
59°
17
82°
54°
18
81°
57°
19
81°
56°
20
83°
60°
21
79°
59°
22
79°
53°
23
77°
56°
24
85°
67°
25
89°
63°
26
82°
62°
27
85°
65°
28
88°
68°
29
87°
64°
30
86°
65°
31
84°
65°
1
81°
59°
2
74°
58°
3
75°
57°
4
82°
64°
5
80°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Stillwater
Stillwater's August 2026 forecast shows daily high temperatures ranging from 74° to 89°, with overnight lows between 53° and 68°. The average high for August is 82° with an average low of 61°. 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 Stillwater. See also: September | October | November.
