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
Herstal, WAL
Content continues below
Content continues below
May
Average Temperature
High
17°
Feels 16
Low
7°
Feels 5
Average Precipitation
12 Days
Rain amount
56.3mm
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
17
18
19
15°
20
17°
21
21°
22
24°
23
25°
24
24°
25
24°
26
28°
27
27°
28
26°
29
19°
30
17°
31
18°
Forecast
Tuesday, May 19, 2026
Day
15°
Feels 14
Wind
21 km/h S
Gust
31 km/h
Humidity
70%
P.O.P
90%
Rain
1-3 mm
Night
12°
Feels 10
Wind
18 km/h SW
Gust
27 km/h
Humidity
95%
P.O.P
90%
Rain
2-4 mm
Historical Averages
May 19
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.