Point Forecast: Mount St Helens WA
 46.2N 122.18W (Elev. 5997 ft)
Last Update: 9:41 am PDT Sep 24, 2024
Tabular Forecast
[hide menu]Get as XML
Weather ElementsWeather/PrecipitationFire Weather
Temperature (°F)
Dewpoint (°F)
Wind Chill (°F)

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  

Date09/2409/25
Hour (PDT)101112131415161718192021222300010203040506070809
Temperature (°F)626365656666666464615857565554545352504949494948
Dewpoint (°F)434547464646464648484543424241414141403939404042
Wind Chill (°F)464445454543
Surface Wind (mph)1087665353333567899101010101010
Wind DirSESSESSESSESSSSSSSWSSWSSWSSSWSSWSSWSSWSSWSSWSWSWSWSSWSSW
Gust
Sky Cover (%)00011181921292620211522212738389797979797
Precipitation Potential (%)33234570000002222224242424242
Relative Humidity (%)495252494848485055616159596162636566686970707179
Rain--------------------------------------OcnlOcnlOcnlOcnlOcnl
Thunder------------------------------------------------
Snow------------------------------------------------
Freezing Rain------------------------------------------------
Sleet------------------------------------------------

Date09/26
Hour (PDT)101112131415161718192021222300010203040506070809
Temperature (°F)474646464745444342413940414242424241403839393940
Dewpoint (°F)434545464642383332313031313231302928272727272729
Wind Chill (°F)424041414341403938373536373636363736353334343536
Surface Wind (mph)1010101099977788899977766666
Wind DirSSWSWSWSWSWSWSWWWWWWWWNWWNWWNWWNWWNWWNWNWNWNWEE
Gust
Sky Cover (%)979595959595958383838080807272724949492828281616
Precipitation Potential (%)4286868686868665656565656514141414141433333
Relative Humidity (%)889697989989796969696969686866636161626262626263
RainOcnlOcnlOcnlOcnlOcnlOcnlOcnlLklyLklyLklyLklyLklyLkly----------------------
Thunder--SChcSChcSChcSChcSChcSChc----------------------------------
Snow--------------SChcSChcSChc----------------------------
Freezing Rain------------------------------------------------
Sleet------------------------------------------------

Additional Forecasts and Information
International System of UnitsForecast Discussion
7-Day ForecastHourly Weather Graph
PFM (Forecast Matrix)PFM Decoding Guide
Current River LevelsWeather Planner
Mapped ObservationsRoad Conditions
Marine WeatherFire Weather
User Defined Area Forecast