S
M
T
W
T
F
S
26
97°
76°
27
98°
79°
28
89°
76°
29
86°
76°
30
82°
74°
31
87°
69°
1
82°
66°
2
85°
65°
3
87°
65°
4
89°
68°
5
81°
70°
6
82°
70°
7
86°
70°
8
89°
67°
9
94°
74°
10
93°
75°
11
96°
75°
12
95°
78°
13
97°
77°
14
94°
76°
15
89°
78°
16
88°
71°
17
85°
65°
18
87°
66°
19
84°
66°
20
87°
65°
21
93°
66°
22
85°
66°
23
79°
64°
24
86°
65°
25
86°
68°
26
91°
70°
27
90°
58°
28
87°
65°
29
96°
73°
30
100°
75°
31
101°
74°
1
97°
70°
2
98°
72°
3
97°
73°
4
96°
72°
5
100°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Rantoul
Rantoul's August 2026 forecast shows daily high temperatures ranging from 87° to 101°, with overnight lows between 58° and 75°. The average high for August is 96° with an average low of 70°. 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 Rantoul. See also: September | October | November.
