Point Forecast: Gaithersburg MD
 39.13N 77.21W (Elev. 404 ft)
Last Update: 1:30 pm EDT 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)
Atmospheric Dispersion Index
Low Visibility Occurrence Risk Index
Ceiling Height
Visibility

48-Hour Period Starting:       Back 2 Days  

Date07/1307/14
Hour (EDT)202122230001020304050607080910111213141516171819
Temperature (°F)817977767575747474747373757779818385858584848381
Dewpoint (°F)767675757574747474737373757676767777777777777676
Heat Index (°F)877977767575757779879296969694949187
Surface Wind (mph)553222222222222335553332
Wind DirSSSSSSSSSSESESESESSSSSSWSSESSES
Gust
Sky Cover (%)565859616463637866637369706563495662736966768088
Precipitation Potential (%)343739424245322223212118151112203443515349637081
Relative Humidity (%)8591949710097100100100971001001009791858277777780808085
RainChcChcChcChcChcChcChcSChcSChcSChcSChcSChcSChc----SChcChcChcChcChcChcLklyLklyOcnl
ThunderChcChcChcChcChcChcSChcSChcSChc------------SChcChcChcChcChcChcLklyLklyLkly

Date07/15
Hour (EDT)202122230001020304050607080910111213141516171819
Temperature (°F)787776767575747373737374757779818384858585848382
Dewpoint (°F)767676757574747373737373747575767676767676767676
Heat Index (°F)787776767575757779879193949494939189
Surface Wind (mph)222221111112222223333333
Wind DirWSSSSSSWSWNWNWNNNNEEEESESSSSSS
Gust
Sky Cover (%)877675747577787879797571676564626772777777777777
Precipitation Potential (%)555555555555282828282828303030303030656565656565
Relative Humidity (%)9497100971009710010010010010097979488858077757575778082
RainLklyLklyLklyLklyLklyLklyChcChcChcChcChcChcChcChcChcChcChcChcLklyLklyLklyLklyLklyLkly
ThunderChcChcChcSChcSChcSChcSChcSChcSChc------------SChcSChcSChcChcChcChcChcChcChc

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