Severe Thunderstorms and Heavy Rain in the Mid-Atlantic; Heat Persists Across the South

Scattered severe thunderstorms and excessive rainfall are possible into the night in the Mid Atlantic, and heavy rain will shift to Virginia and the Carolinas on Friday. Severe thunderstorms are also possible in the Central Plains into the Upper MS Valley and the Deep South tonight. Dangerous heat persists across the Southern Plains and Lower MS Valley and heat will expand into the Southwest. Read More >

For More Weather Information:

Philadelphia, PA Local Forecast Office

35NM S Philadelphia PA

Marine Point Forecast

[NOTICE]
    • Friday

      Friday:Variable winds 5 kt or less. Cloudy, then gradually becoming mostly sunny. Waves 1 ft or less.

      High: 82 °F

      Light Wind
      < 1ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. A slight chance of showers, then a chance of showers and thunderstorms after 2am.   Waves 1 ft or less.

      Low: 66 °F

      Light Wind
      < 1ft

    • Saturday

      Saturday:Variable winds 5 kt or less. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am.   Waves 1 ft or less.

      High: 81 °F

      Light Wind
      < 1ft

    • Saturday Night

      Saturday Night:Variable winds 5 kt or less. A chance of showers and thunderstorms before 2am.   Waves 1 ft or less.

      Low: 67 °F

      Light Wind
      < 1ft

    • Sunday

      Sunday:Variable winds 5 kt or less. A slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm.   Waves 1 ft or less.

      High: 84 °F

      Light Wind
      < 1ft

    • Sunday Night

      Sunday Night:Variable winds 5 kt or less. A chance of showers and thunderstorms before 8pm.   Waves 1 ft or less.

      Low: 64 °F

      Light Wind
      < 1ft

    • Monday

      Monday:Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

      High: 82 °F

      Light Wind
      < 1ft

    • Monday Night

      Monday Night:Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.

      Low: 62 °F

      Light Wind
      < 1ft

    • Tuesday

      Tuesday:Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

      High: 82 °F

      Light Wind
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 10:03 pm EDT Aug 20, 2026
Forecast Valid: 3am EDT Aug 21, 2026-6pm EDT Aug 27, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT FRIDAY...

Friday
Variable winds 5 kt or less. Cloudy, then gradually becoming mostly sunny. Waves 1 ft or less.
Friday Night
Variable winds 5 kt or less. A slight chance of showers, then a chance of showers and thunderstorms after 2am. Waves 1 ft or less.
Saturday
Variable winds 5 kt or less. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. Waves 1 ft or less.
Saturday Night
Variable winds 5 kt or less. A chance of showers and thunderstorms before 2am. Waves 1 ft or less.
Sunday
Variable winds 5 kt or less. A slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Waves 1 ft or less.
Sunday Night
Variable winds 5 kt or less. A chance of showers and thunderstorms before 8pm. Waves 1 ft or less.
Monday
Variable winds 5 kt or less. Sunny. Waves 1 ft or less.
Monday Night
Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.
Tuesday
Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
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ABOUT THIS FORECAST

Point Forecast: 39.39°N 75.24°W
Last Update: 10:03 pm EDT Aug 20, 2026
Forecast Valid: 3am EDT Aug 21, 2026-6pm EDT Aug 27, 2026
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