Areas of Dangerous Heat and Heavy Rainfall Today

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley today. Heat Advisories remain in effect. Heavy to excessive rainfall today could bring areas of flooding to parts of the northern High Plains and Midwest into the Ohio Valley. Flood Watches remain in effect. Read More >

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Overcast

78°F

26°C

Humidity 74%
Wind Speed S 5 mph
Barometer 29.88 in (1011.8 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 20 Sep 5:54 pm EDT
Extended Forecast for

2 Miles W Williamstown NJ

  • Tonight

    Tonight: Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 1am.  Mostly cloudy, with a low around 62. Calm wind becoming north around 5 mph after midnight.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Showers
    Likely then
    Chance
    Showers

  • Monday

    Monday: Increasing clouds, with a high near 71. Northeast wind 5 to 10 mph.

    High: 71 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: Showers likely after 11pm.  Cloudy, with a low around 57. Northeast wind 5 to 10 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 57 °F

    Chance
    Showers then
    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely.  Mostly cloudy, with a high near 64. Northeast wind around 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 64 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers.  Cloudy, with a low around 54. Northeast wind 10 to 15 mph.  Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 54 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers.  Mostly cloudy, with a high near 64. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 64 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers after 2am.  Mostly cloudy, with a low around 53. Chance of precipitation is 30%.

    Low: 53 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A chance of showers before 8am.  Mostly cloudy, with a high near 63. Chance of precipitation is 30%.

    High: 63 °F

    Chance
    Showers then
    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 1am. Mostly cloudy, with a low around 62. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Increasing clouds, with a high near 71. Northeast wind 5 to 10 mph.
Monday Night
Showers likely after 11pm. Cloudy, with a low around 57. Northeast wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Showers likely. Mostly cloudy, with a high near 64. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
A chance of showers. Cloudy, with a low around 54. Northeast wind 10 to 15 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A chance of showers. Mostly cloudy, with a high near 64. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
A chance of showers after 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.
Thursday
A chance of showers before 8am. Mostly cloudy, with a high near 63. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 51.
Friday
A chance of showers. Partly sunny, with a high near 64. Chance of precipitation is 30%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 51. Chance of precipitation is 30%.
Saturday
A chance of showers. Mostly sunny, with a high near 68. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 52. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Williamstown NJ
 39.7°N 75.03°W (Elev. 112 ft)
4:09 pm EDT Sep 20, 2026
6pm EDT Sep 20, 2026-6pm EDT Sep 27, 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