Point Forecast: Reston VA
 38.95N 77.36W (Elev. 136 m)
Last Update: 1:31 pm EDT Jul 15, 2025
Tabular Forecast
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Weather ElementsFire WeatherAviation Weather
Temperature (°C)
Dewpoint (°C)
Heat Index (°C)

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

Rain
Thunder
Fog
Mixing Height  
Trans. Wind  
Vent Rate (x1000 mph-m)
Atmospheric Dispersion Index
Low Visibility Occurrence Risk Index
Ceiling Height
Visibility

48-Hour Period Starting:       Back 2 Days  

Date07/1507/16
Hour (EDT)192021222300010203040506070809101112131415161718
Temperature (°C)312927262525242424242323232526282930313131312928
Dewpoint (°C)242424242424232324232323232424242424242524242424
Heat Index (°C)363329262525242424242526323436373837373433
Surface Wind (mph)533322222233556678899998
Wind DirSSESSSSSSSSSSSSSSSSSSSSWSWS
Gust
Sky Cover (%)594937324843534753545852536555667259615976808677
Precipitation Potential (%)2495677565556557111018273346627063
Relative Humidity (%)687485919794949497971001001009491827772707068707580
RainSChc--------------------------------SChcChcChcChcLklyLklyLkly
ThunderSChc--------------------------------SChcSChcChcChcLklyLklyLkly

Date07/17
Hour (EDT)192021222300010203040506070809101112131415161718
Temperature (°C)272726262626252525242424252627293132333434333232
Dewpoint (°C)242424242424232323232323232424232323232323232323
Heat Index (°C)312926262626252525242424252631333537393939383736
Surface Wind (mph)877766777777777888999987
Wind DirSSSSSSSWSWSWSWSWSWSWSWSWSWSWSWWWWSWSWSW
Gust
Sky Cover (%)748065666766666564636255484139363442495757575757
Precipitation Potential (%)602121212121215555559999993636363636
Relative Humidity (%)828588919191909090909094909182726560565454545859
RainLklySChcSChcSChcSChcSChcSChc------------------------ChcChcChcChcChc
ThunderLklySChcSChcSChcSChcSChcSChc------------------------ChcChcChcChcChc

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