Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Mostly Cloudy

46°F

8°C

Humidity 63%
Wind Speed Vrbl 3 mph
Barometer 30.61 in (1036.6 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 9 Apr 9:54 am EDT
Extended Forecast for

Williamstown NJ

  • Today

    Today: Areas of frost before 10am.  Otherwise, mostly sunny, with a high near 57. Calm wind becoming south around 5 mph in the afternoon.

    High: 57 °F

    Areas Frost
    then Mostly
    Sunny

  • Tonight

    Tonight: Patchy fog between 3am and 4am. Patchy frost after 3am.  Otherwise, partly cloudy, with a low around 35. Southeast wind around 5 mph becoming calm  in the evening.

    Low: 35 °F

    Mostly Clear
    then Patchy
    Frost and
    Patchy Fog

  • Friday

    Friday: Patchy fog before 8am. Patchy frost before 8am.  Otherwise, mostly sunny, with a high near 67. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 67 °F

    Patchy Frost
    and Patchy
    Fog then
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 49. South wind around 5 mph.

    Low: 49 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 65. North wind 5 to 10 mph.

    High: 65 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 79.

    High: 79 °F

    Mostly Cloudy

Detailed Forecast

Today
Areas of frost before 10am. Otherwise, mostly sunny, with a high near 57. Calm wind becoming south around 5 mph in the afternoon.
Tonight
Patchy fog between 3am and 4am. Patchy frost after 3am. Otherwise, partly cloudy, with a low around 35. Southeast wind around 5 mph becoming calm in the evening.
Friday
Patchy fog before 8am. Patchy frost before 8am. Otherwise, mostly sunny, with a high near 67. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 49. South wind around 5 mph.
Saturday
Sunny, with a high near 65. North wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 40.
Sunday
Mostly sunny, with a high near 64.
Sunday Night
Mostly cloudy, with a low around 50.
Monday
Mostly cloudy, with a high near 79.
Monday Night
Mostly cloudy, with a low around 61.
Tuesday
Mostly sunny, with a high near 86.
Tuesday Night
Partly cloudy, with a low around 64.
Wednesday
Mostly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Williamstown NJ
 39.69°N 75°W (Elev. 161 ft)
9:09 am EDT Apr 9, 2026
9am EDT Apr 9, 2026-6pm EDT Apr 15, 2026
 
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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