Point Forecast: Potomac MD
 39.02N 77.2W (Elev. 381 ft)
Last Update: 3:53 am EST Jan 23, 2026
Tabular Forecast
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Weather ElementsFire WeatherAviation Weather
Temperature (°F)
Dewpoint (°F)
Wind Chill (°F)

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

Rain
Thunder
Snow
Freezing Rain
Sleet
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  

Date01/2301/24
Hour (EST)040506070809101112131415161718192021222300010203
Temperature (°F)313030302933353739394040393733292523201816141412
Dewpoint (°F)151514111112131313131312118630-3-5-7-9-10-11-11
Wind Chill (°F)31302626242830313232333231272217119520-2-2-4
Surface Wind (mph)2233566810111315151718182018181817161615
Wind DirNWNWNWNWNWNWWWWWWNWNWNWNWNWNWNWNNNNNN
Gust182021222323242626262525242323
Sky Cover (%)324151777879807575716870687147444345503626304138
Precipitation Potential (%)001000112111222211000000
Relative Humidity (%)515351444641403734343331312931323331323231323134
Rain------------------------------------------------
Thunder------------------------------------------------
Snow------------------------------------------------
Freezing Rain------------------------------------------------
Sleet------------------------------------------------

Date01/25
Hour (EST)040506070809101112131415161718192021222300010203
Temperature (°F)11101010911141617191920201919181818181817171617
Dewpoint (°F)-11-11-10-9-8-8-7-7-8-8-8-8-8-8-7-5-3-114791112
Wind Chill (°F)-5-5-5-5-6-326911111212121213131313131212910
Surface Wind (mph)141313131110976666655333333355
Wind DirNNNNNNNNNNNNNNNENENENEEEEEENE
Gust222118
Sky Cover (%)444039413048656974788387929394959596969799100100100
Precipitation Potential (%)000000000111111111111727272727272999999
Relative Humidity (%)353739414541383531292928282930353842465364708080
Rain------------------------------------------------
Thunder------------------------------------------------
Snow------------------------------LklyLklyLklyLklyLklyLklyOcnlOcnlOcnl
Freezing Rain------------------------------------------------
Sleet------------------------------------------------

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