S
M
T
W
T
F
S
26
93°
75°
27
92°
74°
28
93°
75°
29
92°
75°
30
93°
74°
31
91°
74°
1
88°
73°
2
88°
73°
3
89°
74°
4
88°
74°
5
89°
73°
6
91°
74°
7
91°
74°
8
88°
73°
9
87°
73°
10
88°
72°
11
88°
72°
12
87°
71°
13
89°
72°
14
92°
72°
15
93°
72°
16
90°
71°
17
93°
72°
18
94°
71°
19
93°
72°
20
94°
71°
21
94°
69°
22
90°
68°
23
90°
69°
24
91°
69°
25
92°
70°
26
93°
68°
27
94°
72°
28
94°
72°
29
95°
70°
30
94°
70°
31
93°
72°
1
93°
70°
2
92°
70°
3
93°
72°
4
93°
71°
5
92°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Roseland
Roseland's August 2026 forecast shows daily high temperatures ranging from 87° to 95°, with overnight lows between 68° and 75°. The average high for August is 91° with an average low of 72°. 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 Roseland. See also: September | October | November.