The Weather Network
Weather
Maps
News
Video
|
Welcome
Monthly
⋮
Current
Hourly
7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Port Barrington, IL
Content continues below
Content continues below
May
Average Temperature
High
21°
Feels 21
Low
9°
Feels 8
Average Precipitation
12 Days
Rain amount
84.4mm
Snow amount
0cm
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
27°
17
26°
18
26°
19
23°
20
17°
21
18°
22
21°
23
21°
24
21°
25
21°
26
21°
27
23°
28
23°
29
24°
30
24°
31
Forecast
Saturday, May 16, 2026
Day
27°
Feels 28
Wind
16 km/h W
Gust
24 km/h
Humidity
54%
P.O.P
40%
Rain
~1 mm
Night
17°
Feels 16
Wind
22 km/h S
Gust
33 km/h
Humidity
100%
P.O.P
80%
Rain
1-3 mm
Historical Averages
May 16
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.