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
Mount Barker, WA
Content continues below
May
Average Temperature
High
18°
Feels 18
Low
10°
Feels 9
Average Precipitation
7 Days
Rain amount
36.2mm
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°
21
20°
22
14°
23
14°
24
16°
25
19°
26
20°
27
18°
28
20°
29
18°
30
17°
31
14°
Forecast
Wednesday, May 20, 2026
Day
21°
Feels 21
Wind
18 km/h NW
Gust
27 km/h
Humidity
39%
P.O.P
30%
Night
9°
Feels 8
Wind
7 km/h N
Gust
11 km/h
Humidity
89%
P.O.P
30%
Historical Averages
May 20
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.