S
M
T
W
T
F
S
26
109°
85°
27
106°
82°
28
100°
82°
29
101°
81°
30
104°
79°
31
106°
82°
1
105°
79°
2
104°
78°
3
105°
77°
4
104°
79°
5
104°
83°
6
Hist. Avg.
105°
81°
7
Hist. Avg.
105°
81°
8
Hist. Avg.
105°
81°
9
Hist. Avg.
105°
81°
10
Hist. Avg.
105°
81°
11
Hist. Avg.
105°
81°
12
Hist. Avg.
105°
81°
13
Hist. Avg.
105°
81°
14
Hist. Avg.
105°
81°
15
Hist. Avg.
105°
81°
16
Hist. Avg.
105°
81°
17
Hist. Avg.
105°
81°
18
Hist. Avg.
105°
81°
19
Hist. Avg.
105°
80°
20
Hist. Avg.
105°
80°
21
Hist. Avg.
104°
80°
22
Hist. Avg.
104°
80°
23
Hist. Avg.
104°
80°
24
Hist. Avg.
104°
80°
25
Hist. Avg.
104°
80°
26
Hist. Avg.
104°
80°
27
Hist. Avg.
104°
80°
28
Hist. Avg.
104°
79°
29
Hist. Avg.
104°
79°
30
Hist. Avg.
104°
79°
31
Hist. Avg.
103°
79°
1
Hist. Avg.
103°
79°
2
Hist. Avg.
103°
78°
3
Hist. Avg.
103°
78°
4
Hist. Avg.
103°
78°
5
Hist. Avg.
102°
78°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Peoria
Peoria's August 2026 forecast shows daily high temperatures ranging from 100° to 109°, with overnight lows between 77° and 85°. The average high for August is 104° with an average low of 81°. 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.
