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

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Light Rain

42°F

6°C

Humidity 89%
Wind Speed N 17 G 23 mph
Barometer 29.54 in (1000.1 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 13 Nov 6:54 am EST
Extended Forecast for

Williamstown NJ

  • Today

    Today: Rain. High near 43. North wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 43 °F

    Rain

  • Tonight

    Tonight: Rain and snow likely before 1am, then a slight chance of rain between 1am and 2am. Cloudy, with a low around 32. Northwest wind around 10 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 32 °F

    Rain/Snow
    Likely then
    Slight Chance
    Rain

  • Saturday

    Saturday: Partly sunny, with a high near 47. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 47 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 32. West wind 5 to 10 mph.

    Low: 32 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 50. Northwest wind 5 to 10 mph.

    High: 50 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

Detailed Forecast

Today
Rain. High near 43. North wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Rain and snow likely before 1am, then a slight chance of rain between 1am and 2am. Cloudy, with a low around 32. Northwest wind around 10 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Saturday
Partly sunny, with a high near 47. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Saturday Night
Partly cloudy, with a low around 32. West wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 50. Northwest wind 5 to 10 mph.
Sunday Night
Partly cloudy, with a low around 30.
Monday
Mostly sunny, with a high near 51.
Monday Night
Mostly clear, with a low around 29.
Tuesday
Sunny, with a high near 54.
Tuesday Night
Mostly clear, with a low around 29.
Wednesday
Sunny, with a high near 58.
Wednesday Night
Clear, with a low around 29.
Thursday
Sunny, with a high near 61.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Williamstown NJ
 39.69°N 74.97°W (Elev. 148 ft)
Last Update:
7:01 am EST Nov 13, 2026
Forecast Valid:
7am EST Nov 13, 2026-6pm EST Nov 19, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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