National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Mostly Cloudy

34°F

1°C

Humidity 35%
Wind Speed SE 5 mph
Barometer 30.63 in (1037.0 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 2 Mar 2:54 pm EST
Extended Forecast for

Williamstown NJ

Winter Weather Advisory March 3, 05:00am until March 3, 09:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: A slight chance of snow between 3am and 4am, then a chance of rain and snow. Mostly cloudy, with a low around 30. East wind around 5 mph. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 30 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Tuesday

    Tuesday: Rain and snow, becoming all rain after 2pm. High near 44. Southeast wind around 5 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 44 °F

    Rain/Snow
    Likely then
    Rain

  • Tuesday Night

    Tuesday Night: Rain. Low around 42. Southwest wind 5 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 42 °F

    Rain

  • Wednesday

    Wednesday: Rain likely, mainly before 7am. Mostly cloudy, with a high near 56. West wind around 5 mph becoming calm in the morning. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 56 °F

    Rain Likely
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after 1am. Cloudy, with a low around 43. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Chance Rain
    then Rain
    Likely

  • Thursday

    Thursday: A chance of rain, mainly before 1pm. Cloudy, with a high near 61. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly after 1am. Cloudy, with a low around 47. Chance of precipitation is 60%.

    Low: 47 °F

    Rain Likely

  • Friday

    Friday: A chance of rain before 1pm. Mostly cloudy, with a high near 64. Chance of precipitation is 30%.

    High: 64 °F

    Chance Rain

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A slight chance of snow between 3am and 4am, then a chance of rain and snow. Mostly cloudy, with a low around 30. East wind around 5 mph. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.
Tuesday
Rain and snow, becoming all rain after 2pm. High near 44. Southeast wind around 5 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Tuesday Night
Rain. Low around 42. Southwest wind 5 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain likely, mainly before 7am. Mostly cloudy, with a high near 56. West wind around 5 mph becoming calm in the morning. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain likely, mainly after 1am. Cloudy, with a low around 43. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A chance of rain, mainly before 1pm. Cloudy, with a high near 61. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain likely, mainly after 1am. Cloudy, with a low around 47. Chance of precipitation is 60%.
Friday
A chance of rain before 1pm. Mostly cloudy, with a high near 64. Chance of precipitation is 30%.
Friday Night
Mostly cloudy, with a low around 44.
Saturday
Partly sunny, with a high near 66.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 53. Chance of precipitation is 50%.
Sunday
A chance of rain. Mostly cloudy, with a high near 72. Chance of precipitation is 30%.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 54. Chance of precipitation is 40%.
Monday
A chance of rain. Mostly cloudy, with a high near 69. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Williamstown NJ
 39.69°N 75°W (Elev. 161 ft)
Last Update:
1:24 pm EST Mar 2, 2026
Forecast Valid:
3pm EST Mar 2, 2026-6pm EDT Mar 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation