S
M
T
W
T
F
S
26
76°
53°
27
76°
50°
28
76°
47°
29
74°
52°
30
75°
53°
31
73°
51°
1
73°
51°
2
74°
49°
3
73°
50°
4
77°
54°
5
76°
56°
6
78°
54°
7
79°
50°
8
76°
44°
9
72°
45°
10
68°
42°
11
66°
42°
12
68°
44°
13
73°
46°
14
75°
51°
15
75°
52°
16
76°
49°
17
76°
47°
18
66°
49°
19
68°
48°
20
74°
47°
21
73°
44°
22
68°
42°
23
64°
41°
24
63°
46°
25
64°
48°
26
63°
48°
27
63°
48°
28
64°
43°
29
65°
45°
30
68°
48°
31
71°
48°
1
71°
47°
2
70°
47°
3
69°
48°
4
71°
48°
5
71°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Peoria
Peoria's August 2026 forecast shows daily high temperatures ranging from 63° to 79°, with overnight lows between 41° and 56°. The average high for August is 71° with an average low of 48°. 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 Peoria. See also: September | October | November.
