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7 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Arlington Heights, IL
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July
Average Temperature
High
29°
Feels 30
Low
18°
Feels 18
Average Precipitation
12 Days
Rain amount
104.6mm
Snow amount
0cm
Content continues below
Daily Historical Averages
July 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
30°
19
27°
20
30°
21
29°
22
24°
23
28°
24
30°
25
30°
26
31°
27
30°
28
29°
29
28°
30
30°
31
30°
Forecast
Saturday, July 18, 2026
Day
30°
Feels 34
Wind
22 km/h W
Gust
33 km/h
Humidity
58%
P.O.P
40%
Rain
~1 mm
Night
19°
Feels 19
Wind
22 km/h NE
Gust
33 km/h
Humidity
88%
P.O.P
10%
Historical Averages
Jul 18
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.