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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
Zion, IL
Content continues below
May
Average Temperature
High
18°
Feels 17
Low
9°
Feels 7
Average Precipitation
11 Days
Rain amount
84.5mm
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
13°
21
11°
22
13°
23
14°
24
23°
25
19°
26
18°
27
18°
28
16°
29
17°
30
18°
31
18°
Forecast
Wednesday, May 20, 2026
Day
13°
Feels 10
Wind
27 km/h NE
Gust
42 km/h
Humidity
60%
P.O.P
20%
Night
8°
Feels 4
Wind
28 km/h NE
Gust
42 km/h
Humidity
71%
P.O.P
20%
Historical Averages
May 20
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.