Severe Thunderstorms and Flash Flooding Risks - Saturday, July 18th

Scattered to numerous severe thunderstorms are likely across the region on Saturday, July 18th, including a risk of flash flooding for portions of the area. View this briefing for the details regarding these hazards. Read More >

For More Weather Information:

Philadelphia, PA Local Forecast Office

15NM NE Lewes DE

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:S wind 10 to 15 kt becoming WSW after midnight. Showers and thunderstorms likely before 2am, then a slight chance of showers and thunderstorms after 3am. Some of the storms could be severe.   Seas 1 ft or less.

      Low: 74 °F

      S 15kt
      < 1ft

    • Sunday

      Sunday:NW wind around 10 kt. Mostly cloudy through mid morning, then gradual clearing. Seas around 1 ft.

      High: 83 °F

      NW 10kt
      1ft

    • Sunday Night

      Sunday Night:Variable winds 5 kt or less. Mostly clear. Seas around 1 ft.

      Low: 69 °F

      Light Wind
      1ft

    • Monday

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

      High: 84 °F

      Light Wind
      1ft

    • Monday Night

      Monday Night:Variable winds 5 kt or less. A chance of showers and thunderstorms after 2am.   Seas around 1 ft.

      Low: 74 °F

      Light Wind
      1ft

    • Tuesday

      Tuesday:S wind around 10 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm.   Seas around 1 ft.

      High: 85 °F

      S 10kt
      1ft

    • Tuesday Night

      Tuesday Night:SW wind around 15 kt, with gusts as high as 25 kt. Showers and possibly a thunderstorm.   Seas 1 to 2 ft.

      Low: 74 °F

      SW 15kt
      1-2ft

    • Wednesday

      Wednesday:SW wind around 15 kt, with gusts as high as 25 kt. Showers likely, with thunderstorms also possible after 2pm.   Seas around 2 ft.

      High: 84 °F

      SW 15kt
      2ft

    • Wednesday Night

      Wednesday Night:WSW wind around 10 kt becoming NW after midnight. A chance of showers and thunderstorms.   Seas 1 to 2 ft.

      Low: 69 °F

      WSW 10kt
      1-2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:08 pm EDT Jul 18, 2026
Forecast Valid: 7pm EDT Jul 18, 2026-6pm EDT Jul 25, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT SUNDAY...

Tonight
S wind 10 to 15 kt becoming WSW after midnight. Showers and thunderstorms likely before 2am, then a slight chance of showers and thunderstorms after 3am. Some of the storms could be severe. Seas 1 ft or less.
Sunday
NW wind around 10 kt. Mostly cloudy through mid morning, then gradual clearing. Seas around 1 ft.
Sunday Night
Variable winds 5 kt or less. Mostly clear. Seas around 1 ft.
Monday
Variable winds 5 kt or less. Sunny. Seas around 1 ft.
Monday Night
Variable winds 5 kt or less. A chance of showers and thunderstorms after 2am. Seas around 1 ft.
Tuesday
S wind around 10 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Seas around 1 ft.
Tuesday Night
SW wind around 15 kt, with gusts as high as 25 kt. Showers and possibly a thunderstorm. Seas 1 to 2 ft.
Wednesday
SW wind around 15 kt, with gusts as high as 25 kt. Showers likely, with thunderstorms also possible after 2pm. Seas around 2 ft.
Wednesday Night
WSW wind around 10 kt becoming NW after midnight. A chance of showers and thunderstorms. Seas 1 to 2 ft.

*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: 38.94°N 74.89°W
Last Update: 4:08 pm EDT Jul 18, 2026
Forecast Valid: 7pm EDT Jul 18, 2026-6pm EDT Jul 25, 2026
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