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Hourly
7 Days
14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Lake Summerset, IL
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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
22°
20
17°
21
16°
22
15°
23
17°
24
22°
25
24°
26
24°
27
26°
28
26°
29
23°
30
23°
31
25°
Forecast
Tuesday, May 19, 2026
Day
22°
Feels 23
Wind
34 km/h NW
Gust
47 km/h
Humidity
62%
P.O.P
70%
Rain
1-3 mm
Night
8°
Feels 6
Wind
21 km/h NW
Gust
32 km/h
Humidity
81%
P.O.P
30%
Historical Averages
May 19
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.
May
Average Temperature
High
21°
Feels 21
Low
10°
Feels 8
Average Precipitation
11 Days
Rain amount
71mm
Snow amount
0cm