Point Forecast: Lewistown MT
 47.07N 109.43W (Elev. 3898 ft)
Last Update: 10:25 am MDT Jul 13, 2025
Tabular Forecast
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Weather ElementsFire WeatherAviation Weather
Temperature (°F)
Dewpoint (°F)
Heat Index (°F)

Surface Wind  
Sky Cover (%)
Precipitation Potential (%)
Relative Humidity (%)

Rain
Thunder
Fog
Mixing Height  
Trans. Wind  
Vent Rate (x1000 mph-ft)
Grassland Fire Danger Index
Ceiling Height
Visibility

48-Hour Period Starting:       Back 2 Days  

Date07/1307/14
Hour (MDT)141516171819202122230001020304050607080910111213
Temperature (°F)868789878786827772696765636160605862677279838586
Dewpoint (°F)424040404145464848484948484848484649505050494949
Heat Index (°F)838485848483807779818284
Surface Wind (mph)910999765555555553556791111
Wind DirNWNWNWNWNNWNNWNESESESESESSESSWSSSSWWSWWWNWWNWNWNW
Gust1818182020
Sky Cover (%)669181417915242118163025141213733574040
Precipitation Potential (%)00006668798633320000002121
Relative Humidity (%)211918192024293643475255596365646562564637312927
Rain--------------------------------------------SChcSChc
Thunder------------------------------------------------

Date07/15
Hour (MDT)141516171819202122230001020304050607080910111213
Temperature (°F)878787858278746965625956545351504950515354545556
Dewpoint (°F)494949505153555556555554545351504950515151515150
Heat Index (°F)858584838178
Surface Wind (mph)111111111414141515151313131111111111111010101010
Wind DirNWNNWNNWNNWNNENNENNENNNNNNNNNNNNENEENEENEENEENE
Gust202020202222222525252222222020202121211818182020
Sky Cover (%)404040407979797979798282829494949393938383838080
Precipitation Potential (%)212121216868686868687373737373736767676767677070
Relative Humidity (%)2627272934425262717986929710010010010099979592888582
RainSChcSChcSChcSChcLklyLklyLklyLklyLklyLklyLklyLklyLklyLklyLklyLklyLklyLklyLklyLklyLklyLklyLklyLkly
Thunder--SChcSChcSChcChcChcChcChcChcChcSChcSChcSChcSChcSChcSChc----------------

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