Point Forecast: Waltham MA
 42.38N 71.24W (Elev. 98 ft)
Last Update: 3:27 pm EDT Jul 15, 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  
20ft Wind  
Vent Rate (x1000 mph-ft)
Dispersion Index
Ceiling Height
Visibility
Thunder Potential

48-Hour Period Starting:       Back 2 Days  

Date07/1507/16
Hour (EDT)192021222300010203040506070809101112131415161718
Temperature (°F)858280787775747473727172737579848790919292929290
Dewpoint (°F)727372727271727170706970717272727272717171717272
Heat Index (°F)91878478777575799094979899999910097
Surface Wind (mph)553332222222222235666666
Wind DirSSSSSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWS
Gust
Sky Cover (%)352719101418181716232936282133261919191927354246
Precipitation Potential (%)1780000000000000000112222
Relative Humidity (%)657477828587939090939393939079676156525151515256
RainSChc----------------------------------------------
ThunderSChc----------------------------------------------

Date07/17
Hour (EDT)192021222300010203040506070809101112131415161718
Temperature (°F)888684828078777776767676777980828486888990908988
Dewpoint (°F)727373737272737373727272737474757575767676757575
Heat Index (°F)9593908784787777767676767777798790949799100999896
Surface Wind (mph)666666555555667788999998
Wind DirSSSWSWSWSWSWSWSWSSSSWSWSWSWSWSWSWSWSWSWSWSW
Gust
Sky Cover (%)491128456268747985909693898677696767686869696965
Precipitation Potential (%)2467911131517192126313641465151525253545447
Relative Humidity (%)596570747782878790878787879086827773706866656667
Rain--------------SChcSChcSChcSChcChcChcChcChcChcChcChcChcChcChcChcChcChc
Thunder--------------------------SChcSChcSChcSChcSChcSChcChcChcChcChcChc

Additional Forecasts and Information
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