S
M
T
W
T
F
S
26
89°
78°
27
91°
80°
28
92°
79°
29
92°
79°
30
91°
80°
31
92°
79°
1
93°
79°
2
93°
80°
3
92°
79°
4
92°
79°
5
91°
80°
6
89°
79°
7
92°
80°
8
91°
78°
9
92°
79°
10
91°
79°
11
90°
78°
12
92°
79°
13
91°
79°
14
90°
78°
15
87°
79°
16
88°
78°
17
88°
78°
18
88°
79°
19
88°
78°
20
88°
78°
21
87°
77°
22
88°
78°
23
90°
77°
24
90°
76°
25
92°
76°
26
90°
76°
27
89°
76°
28
90°
75°
29
91°
76°
30
92°
74°
31
92°
75°
1
91°
77°
2
89°
76°
3
88°
73°
4
87°
75°
5
86°
76°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Stephenville
Stephenville's August 2026 forecast shows daily high temperatures ranging from 86° to 93°, with overnight lows between 73° and 80°. The average high for August is 90° with an average low of 78°. 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 Stephenville. See also: September | October | November.
