Point Forecast: Lewistown Municipal MT
 47.04N 109.45W (Elev. 4111 ft)
Last Update: 2:29 pm MDT Jul 13, 2025
Tabular Forecast
[hide menu]Get as XML
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)192021222300010203040506070809101112131415161718
Temperature (°F)878578737167666461606058626772798284868787888685
Dewpoint (°F)444750505049484847464646474949514848484949505050
Heat Index (°F)848278798182838485858483
Surface Wind (mph)666666666655666689101010111111
Wind DirNNWNENESESSESSESSESWSWSSWSSWSSWSSWWSWWWWWNWWNWWNWWNWWNWNWNW
Gust181821212121
Sky Cover (%)1791523203426231713876111504313283981
Precipitation Potential (%)6697975753311111145611161758
Relative Humidity (%)222737444852535760616163585144373129272727272830
Rain------------------------------------------SChcSChcLkly
Thunder------------------------------------------SChcSChcChc

Date07/15
Hour (MDT)192021222300010203040506070809101112131415161718
Temperature (°F)827670666360585655545352515150515354555656565655
Dewpoint (°F)515254555655555554535252515050505152525252515049
Heat Index (°F)8176
Surface Wind (mph)111111111110101010101010101010101011111113131311
Wind DirNNWNNNENNENNNNNNENNENNENENENENENENENENENENENENEENE
Gust202020202018181818181820202021212123232321
Sky Cover (%)818181818197979797979798989897979710010010010010010099
Precipitation Potential (%)585858585874747474747475757575757584848484848477
Relative Humidity (%)354357677985909497989898989998969492908886838080
RainLklyLklyLklyLklyLklyLklyLklyLklyLklyLklyLklyOcnlOcnlOcnlOcnlOcnlOcnlOcnlOcnlOcnlOcnlOcnlOcnlOcnl
ThunderChcChcChcChcChcSChcSChcSChc------------------SChcSChcSChcChcChcChcChc

Additional Forecasts and Information
International System of UnitsForecast Discussion
7-Day ForecastHourly Weather Graph