Monthly Historical AveragesMount Helena, WA

Average Temperature
High
20°
Feels 20
Low
11°
Feels 10
Average Precipitation
7 Days
Rain amount
53.2mm
Snow amount
0cm
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Daily Historical Averages

S
M
T
W
T
F
S
ForecastSaturday, May 2, 2026
Day
Mainly sunny
16°Feels 16
Wind
16 km/h S
Gust
25 km/h
Humidity
48%
P.O.P
20%
Night
Partly cloudy
7°Feels 6
Wind
9 km/h SE
Gust
13 km/h
Humidity
96%
P.O.P
20%
Historical AveragesMay 2
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.
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