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 Point Forecast: Mount St Helens WA
 46.18N 122.18W (Elev. 1891 m)
Last Update: 8:43 am PDT May 12, 2021
Tabular Forecast
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Weather ElementsWeather/PrecipitationFire Weather
Temperature (°C)
Dewpoint (°C)
Wind Chill (°C)

Surface Wind  
Sky Cover (%)
Precipitation Potential (%)
Relative Humidity (%)
Rain
Thunder
Snow
Freezing Rain
Sleet
Fog
Mixing Height  
Haines Index
Lightning Activity Level
Trans. Wind  

48-Hour Period Starting:       Back 2 Days  

Date05/1205/13
Hour (PDT)080910111213141516171819202122230001020304050607
Temperature (°C)666789999888876445432223
Dewpoint (°C)-3-3-3-4-4-4-4-4-4-4-3-3-3-2-2-1-10011221
Wind Chill (°C)468788677653210110000003
Surface Wind (mph)111222666131313111111101010555333
Wind DirSWSWSWWNWWNWWNWNNWNNWNNWNNWNNWNNWNNWNNWNNWNNWNNWNNWNWNWNWNWNWNW
Gust
Sky Cover (%)332840252226117681015162017161012243646484848
Precipitation Potential (%)112234432100110000000000
Relative Humidity (%)5351514543403737394244474753606770707382921009685
Rain------------------------------------------------
Thunder------------------------------------------------
Snow------------------------------------------------
Freezing Rain------------------------------------------------
Sleet------------------------------------------------

Date05/14
Hour (PDT)080910111213141516171819202122230001020304050607
Temperature (°C)5678891099999968777653334
Dewpoint (°C)10-1-1-1-2-2-3-3-2-2-1-101000-1-2-5-6-6-4
Wind Chill (°C)45788989987631433331-1-2-20
Surface Wind (mph)111000333555777666333666
Wind DirNNNESEESEESENNWNNWNNWNWNWNWNWNWNWNWNWNWNWNWNWNWNWNW
Gust
Sky Cover (%)474747575757626262666666626262383838505050424242
Precipitation Potential (%)000111111000000000000333
Relative Humidity (%)736560565146424244464848505960606263625954515152
Rain------------------------------------------------
Thunder------------------------------------------------
Snow------------------------------------------------
Freezing Rain------------------------------------------------
Sleet------------------------------------------------

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