Point Forecast: Trenton, Mercer County Airport NJ
 40.28N 74.83W (Elev. 200 ft)
Last Update: 4:09 pm EDT May 17, 2026
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  
20ft Wind  
Vent Rate (x1000 mph-ft)
Ceiling Height
Visibility
Thunder Potential

48-Hour Period Starting:       Back 2 Days  

Date05/1705/18
Hour (EDT)212223000102030405060708091011121314151617181920
Temperature (°F)777573727068666564646671758085878991919291908884
Dewpoint (°F)606161616161616161616263636363626161616162626364
Heat Index (°F)7775758186878991919292908985
Surface Wind (mph)655553322222335667789997
Wind DirSWSWSWSWSWSWSWSWSWSWSESESSSSSSSWSWSWSSS
Gust
Sky Cover (%)82427322534423234404125169773101615171057
Precipitation Potential (%)0000012551321111210101010210
Relative Humidity (%)566266687378848790908776665648433937373638394351
Rain------------------------------------------------
Thunder------------------------------------------------

Date05/19
Hour (EDT)212223000102030405060708091011121314151617181920
Temperature (°F)828078767574717170707075788488919293949594939088
Dewpoint (°F)646565646464636363636465666565646362616060606061
Heat Index (°F)838278767575788690939394949594939088
Surface Wind (mph)6666655555356778891011111098
Wind DirSSSSSSSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSW
Gust20212120
Sky Cover (%)31823311836511352219354089910111314172124
Precipitation Potential (%)244105555550000003333331
Relative Humidity (%)556064666971767678788171675347413836343132333741
Rain------------------------------------------------
Thunder------------------------------------------------

Additional Forecasts and Information
International System of UnitsForecast Discussion
7-Day ForecastHourly Weather Graph
Hazardous Local WeatherRegional Weather Conditions
Interactive Forecast MapNational Forecast Maps
Briefing WebpageEmergency Managers Briefing
Past Weather InformationRiver and Lake Levels