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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Matteson, IL
Content continues below
May
Average Temperature
High
21°
Feels 21
Low
10°
Feels 9
Average Precipitation
12 Days
Rain amount
75.2mm
Snow amount
0cm
Content continues below
Daily Historical Averages
May 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
19
20
21
18°
22
21°
23
22°
24
25°
25
27°
26
27°
27
27°
28
28°
29
25°
30
25°
31
25°
Forecast
Thursday, May 21, 2026
Day
18°
Feels 18
Wind
26 km/h NE
Gust
39 km/h
Humidity
49%
P.O.P
20%
Night
12°
Feels 10
Wind
24 km/h NE
Gust
36 km/h
Humidity
62%
P.O.P
30%
Historical Averages
May 21
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.