S
M
T
W
T
F
S
26
88°
71°
27
88°
71°
28
87°
70°
29
87°
72°
30
88°
72°
31
90°
71°
1
92°
72°
2
91°
71°
3
90°
69°
4
89°
71°
5
88°
69°
6
87°
71°
7
91°
66°
8
89°
67°
9
88°
67°
10
92°
66°
11
91°
66°
12
91°
70°
13
90°
71°
14
91°
70°
15
91°
70°
16
90°
69°
17
91°
70°
18
87°
70°
19
91°
69°
20
89°
68°
21
86°
65°
22
86°
68°
23
87°
66°
24
86°
64°
25
88°
65°
26
90°
69°
27
89°
70°
28
90°
69°
29
89°
69°
30
89°
68°
31
88°
65°
1
89°
64°
2
83°
62°
3
84°
62°
4
87°
67°
5
88°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Monroe
Monroe's August 2026 forecast shows daily high temperatures ranging from 83° to 92°, with overnight lows between 62° and 72°. The average high for August is 89° with an average low of 68°. 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 Monroe. See also: September | October | November.