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

Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Mostly Cloudy

75°F

24°C

Humidity 90%
Wind Speed Calm
Barometer 30.15 in (1021.0 mb)
Dewpoint 72°F (22°C)
Visibility 9.00 mi
Last update 16 Aug 1:54 am EDT
Extended Forecast for

Grenloch NJ

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 88. East wind around 5 mph becoming south in the afternoon.

    High: 88 °F

    Patchy Fog
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 67. Southeast wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 90. Southwest wind 5 to 10 mph.

    High: 90 °F

    Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers before 2am. Partly cloudy, with a low around 71. Southwest wind around 5 mph becoming west after midnight. Chance of precipitation is 20%.

    Low: 71 °F

    Slight Chance
    Showers

  • Monday

    Monday: A slight chance of showers after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 20%.

    High: 81 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 79.

    High: 79 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 8pm. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    Showers

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 70. Calm wind.
Saturday
Patchy fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 88. East wind around 5 mph becoming south in the afternoon.
Saturday Night
Mostly clear, with a low around 67. Southeast wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 90. Southwest wind 5 to 10 mph.
Sunday Night
A slight chance of showers before 2am. Partly cloudy, with a low around 71. Southwest wind around 5 mph becoming west after midnight. Chance of precipitation is 20%.
Monday
A slight chance of showers after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Partly sunny, with a high near 79.
Tuesday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Wednesday
A chance of showers after 2pm. Partly sunny, with a high near 79. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 62. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 60.
Friday
Mostly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grenloch NJ
 39.79°N 75.04°W (Elev. 98 ft)
Last Update:
7:27 pm EDT Aug 15, 2025
Forecast Valid:
2am EDT Aug 16, 2025-6pm EDT Aug 22, 2025
 
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