S
M
T
W
T
F
S
26
89°
76°
27
89°
76°
28
90°
75°
29
89°
76°
30
90°
77°
31
91°
76°
1
89°
76°
2
89°
75°
3
90°
77°
4
91°
76°
5
91°
76°
6
90°
77°
7
90°
76°
8
91°
75°
9
87°
76°
10
91°
74°
11
91°
75°
12
91°
75°
13
92°
76°
14
90°
75°
15
91°
74°
16
90°
74°
17
90°
75°
18
92°
72°
19
92°
74°
20
93°
74°
21
93°
72°
22
90°
74°
23
89°
74°
24
89°
75°
25
90°
74°
26
89°
72°
27
88°
72°
28
88°
73°
29
89°
72°
30
90°
72°
31
92°
73°
1
92°
75°
2
90°
74°
3
91°
75°
4
88°
74°
5
89°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Osteen
Osteen's August 2026 forecast shows daily high temperatures ranging from 87° to 93°, with overnight lows between 72° and 77°. The average high for August is 90° with an average low of 75°. 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 Osteen. See also: September | October | November.
