Heat Wave Expands to the East Coast; Flash Flooding Likely in the Central Plains into the Midwest; Severe Thunderstorms in the Northeast

Dangerous, prolonged heat is ongoing in the Mid-South to Mid-Mississippi Valley and heat expands into the Northeast for a brief period today. Widely scattered instances of flash flooding due to heavy rains are forecast from northeast Kansas to much of Indiana. Scattered strong to severe thunderstorms are possible across parts of New England, northern Mid-Atlantic, and North Dakota. Read More >

Hazardous Weather Conditions

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Mostly Cloudy

85°F

29°C

Humidity 61%
Wind Speed SE 9 mph
Barometer 30.10 in (1019.2 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 26 Jul 12:54 pm EDT
Extended Forecast for

Merchantville NJ

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 88. East wind around 5 mph.

    High: 88 °F

    Partly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly after 2am.  Mostly cloudy, with a low around 72. Southeast wind around 5 mph.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm.  High near 85. Southwest wind around 5 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 85 °F

    Chance
    T-storms then
    Showers

  • Sunday Night

    Sunday Night: Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am.  Low around 74. Southwest wind around 5 mph becoming calm.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 74 °F

    Showers then
    Chance
    Showers

  • Monday

    Monday: Sunny, with a high near 93. Calm wind becoming north around 5 mph.

    High: 93 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 96.

    High: 96 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 77.

    Low: 77 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 88. East wind around 5 mph.
Tonight
A chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 72. Southeast wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 85. Southwest wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Low around 74. Southwest wind around 5 mph becoming calm. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Sunny, with a high near 93. Calm wind becoming north around 5 mph.
Monday Night
Mostly clear, with a low around 74.
Tuesday
Sunny, with a high near 96.
Tuesday Night
Mostly clear, with a low around 77.
Wednesday
Sunny, with a high near 95.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 73. Chance of precipitation is 40%.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 50%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Friday
A chance of showers. Partly sunny, with a high near 80. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Merchantville NJ
 39.92°N 75.05°W (Elev. 7 ft)
4:11 am EDT Jul 26, 2025
1pm EDT Jul 26, 2025-6pm EDT Aug 1, 2025
 
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Additional Resources

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