Point Forecast: Mount St Helens WA
 46.2N 122.21W (Elev. 6598 ft)
Last Update: 3:41 am PDT May 4, 2024
Tabular Forecast
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Weather ElementsWeather/PrecipitationFire Weather
Temperature (°F)
Dewpoint (°F)
Heat Index (°F)

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

48-Hour Period Starting:       Back 2 Days  

Date05/0405/05
Hour (PDT)040506070809101112131415161718192021222300010203
Temperature (°F)323232293232313028272828302728282525252627262525
Dewpoint (°F)292928252828282828272828302728282424232425242222
Heat Index (°F)
Surface Wind (mph)181517202117149887910910111113131416171821
Wind DirSSESEESEESEESESESSESSESSWSWSWWSWWSWWWWWNWWNWWNWWNWWWWW
Gust252124282924202023242529
Sky Cover (%)87908788879296991001009897949491909091878790909194
Precipitation Potential (%)616262596487949899999795919086848179777981858690
Relative Humidity (%)87878584848590941001001001001009999989794929191918890
Rain------------------------------------------------
Thunder------------------------------------------------

Date05/06
Hour (PDT)040506070809101112131415161718192021222300010203
Temperature (°F)252426252525252425252626272727282828282828282828
Dewpoint (°F)222023222223232324252626272727272726262525252424
Heat Index (°F)
Surface Wind (mph)212121212121212222222525252828282222222222222121
Wind DirWWSWWSWWSWWSWWSWWSWWSWWSWWSWWSWWSWWSWWWWWSWWSWWSWWSWWSWWSWWSWWSW
Gust292828283333332525252626262626
Sky Cover (%)959595959595959898989898981001001001001001009999999999
Precipitation Potential (%)929292929292929696969696961001001001001001009898989898
Relative Humidity (%)8886888887919497989910010010010099989794918887878685
Rain------------------------------------------------
Thunder------------------------------------------------

Additional Forecasts and Information
International System of UnitsForecast Discussion
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PFM (Forecast Matrix)PFM Decoding Guide
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