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

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Overcast

63°F

17°C

Humidity 68%
Wind Speed N 13 mph
Barometer 30.18 in (1021.8 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 3 Oct 6:54 am EDT
Extended Forecast for

3 Miles WNW Williamstown NJ

  • Today

    Today: A slight chance of showers before 8am. Mostly cloudy, with a high near 71. Northeast wind around 5 mph. Chance of precipitation is 20%.

    High: 71 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 57. East wind around 5 mph becoming calm.

    Low: 57 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers, mainly after 2pm. High near 66. East wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 66 °F

    Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: A chance of showers before 2am. Cloudy, with a low around 57. Calm wind. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 57 °F

    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 71. Northwest wind around 5 mph, with gusts as high as 20 mph.

    High: 71 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Clear, with a low around 47.

    Low: 47 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 43.

    Low: 43 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers before 8am. Mostly cloudy, with a high near 71. Northeast wind around 5 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 57. East wind around 5 mph becoming calm.
Sunday
Showers, mainly after 2pm. High near 66. East wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
A chance of showers before 2am. Cloudy, with a low around 57. Calm wind. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Mostly sunny, with a high near 71. Northwest wind around 5 mph, with gusts as high as 20 mph.
Monday Night
Clear, with a low around 47.
Tuesday
Sunny, with a high near 62.
Tuesday Night
Clear, with a low around 43.
Wednesday
Sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Sunny, with a high near 69.
Thursday Night
Mostly clear, with a low around 51.
Friday
Sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Williamstown NJ
 39.7°N 75.03°W (Elev. 112 ft)
Last Update:
4:09 am EDT Oct 3, 2026
Forecast Valid:
7am EDT Oct 3, 2026-6pm EDT Oct 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