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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Cowlitz, WA
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May
Average Temperature
High
19°
Feels 19
Low
7°
Feels 6
Average Precipitation
11 Days
Rain amount
58.3mm
Snow amount
0cm
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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
20
21
22
23
24
25
16°
26
16°
27
22°
28
22°
29
16°
30
17°
31
16°
Forecast
Monday, May 25, 2026
Day
16°
Feels 15
Wind
18 km/h S
Gust
27 km/h
Humidity
51%
P.O.P
90%
Rain
5-10 mm
Night
8°
Feels 7
Wind
12 km/h S
Gust
18 km/h
Humidity
100%
P.O.P
40%
Rain
~1 mm
Historical Averages
May 25
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.