S
M
T
W
T
F
S
26
81°
57°
27
79°
52°
28
80°
56°
29
80°
57°
30
81°
50°
31
77°
49°
1
76°
56°
2
80°
55°
3
81°
53°
4
81°
51°
5
80°
51°
6
78°
56°
7
80°
58°
8
81°
56°
9
82°
53°
10
81°
48°
11
79°
47°
12
74°
48°
13
76°
47°
14
75°
47°
15
75°
49°
16
78°
55°
17
80°
58°
18
79°
58°
19
80°
58°
20
81°
58°
21
80°
56°
22
78°
52°
23
77°
55°
24
78°
52°
25
69°
51°
26
69°
49°
27
70°
47°
28
67°
45°
29
69°
44°
30
69°
46°
31
70°
47°
1
68°
54°
2
68°
54°
3
67°
53°
4
67°
51°
5
66°
49°
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 66° to 82°, with overnight lows between 44° and 58°. The average high for August is 76° with an average low of 52°. 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.
