S
M
T
W
T
F
S
26
76°
56°
27
78°
54°
28
75°
53°
29
68°
52°
30
73°
54°
31
74°
54°
1
74°
53°
2
70°
50°
3
70°
50°
4
72°
48°
5
69°
47°
6
70°
52°
7
76°
51°
8
75°
49°
9
67°
48°
10
73°
50°
11
75°
49°
12
76°
50°
13
75°
44°
14
67°
44°
15
74°
48°
16
74°
51°
17
75°
51°
18
75°
50°
19
74°
50°
20
72°
46°
21
68°
46°
22
64°
43°
23
62°
43°
24
65°
49°
25
67°
50°
26
69°
49°
27
68°
39°
28
64°
40°
29
64°
43°
30
66°
45°
31
71°
47°
1
70°
49°
2
72°
50°
3
72°
48°
4
71°
46°
5
67°
40°
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 62° to 78°, with overnight lows between 39° 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.
