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Philadelphia, PA Local Forecast Office

20NM NNW Lewes DE

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:S wind around 10 kt. Mostly clear. Waves around 1 ft.

      Low: 48 °F

      S 10kt
      1ft

    • Wednesday

      Wednesday:S wind 10 to 15 kt. A slight chance of showers and thunderstorms between 2pm and 5pm.  Patchy fog between 9am and 11am.  Waves around 1 ft.

      High: 63 °F

      S 15kt
      1ft

    • Wednesday Night

      Wednesday Night:S wind 15 to 18 kt becoming SW 17 to 20 kt after midnight. A chance of showers and thunderstorms.   Waves 2 to 3 ft.

      Low: 50 °F

      ⇑SW 20kt
      2-3ft

    • Thursday

      Thursday:NW wind 20 to 25 kt. Showers, mainly before 2pm.   Waves around 3 ft.

      High: 54 °F

      NW 25kt
      3ft

    • Thursday Night

      Thursday Night:WNW wind 10 to 15 kt decreasing to 5 to 10 kt after midnight. A chance of showers before 8pm.   Waves 2 to 3 ft.

      Low: 36 °F

      WNW 15kt⇓
      2-3ft

    • Friday

      Friday:S wind 5 to 10 kt increasing to 20 to 25 kt. Partly sunny. Waves 1 to 2 ft.

      High: 48 °F

      ⇑S 25kt
      1-2ft

    • Friday Night

      Friday Night:S wind 22 to 25 kt becoming WSW 20 to 23 kt after midnight. Mostly cloudy. Waves 3 to 4 ft.

      Low: 42 °F

      S 25kt⇓
      3-4ft

    • Saturday

      Saturday:WNW wind 15 to 20 kt decreasing to 10 to 15 kt in the afternoon. Mostly sunny. Waves 1 to 2 ft.

      High: 49 °F

      WNW 20kt⇓
      1-2ft

    • Saturday Night

      Saturday Night:WSW wind 5 to 10 kt becoming ESE after midnight. Mostly cloudy. Waves around 1 ft.

      Low: 42 °F

      ESE 10kt
      1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:09 pm EDT Mar 10, 2026
Forecast Valid: 5pm EDT Mar 10, 2026-6pm EDT Mar 17, 2026

View Nearby Observations

Detailed Forecast


Tonight
S wind around 10 kt. Mostly clear. Waves around 1 ft.
Wednesday
S wind 10 to 15 kt. A slight chance of showers and thunderstorms between 2pm and 5pm. Patchy fog between 9am and 11am. Waves around 1 ft.
Wednesday Night
S wind 15 to 18 kt becoming SW 17 to 20 kt after midnight. A chance of showers and thunderstorms. Waves 2 to 3 ft.
Thursday
NW wind 20 to 25 kt. Showers, mainly before 2pm. Waves around 3 ft.
Thursday Night
WNW wind 10 to 15 kt decreasing to 5 to 10 kt after midnight. A chance of showers before 8pm. Waves 2 to 3 ft.
Friday
S wind 5 to 10 kt increasing to 20 to 25 kt. Partly sunny. Waves 1 to 2 ft.
Friday Night
S wind 22 to 25 kt becoming WSW 20 to 23 kt after midnight. Mostly cloudy. Waves 3 to 4 ft.
Saturday
WNW wind 15 to 20 kt decreasing to 10 to 15 kt in the afternoon. Mostly sunny. Waves 1 to 2 ft.
Saturday Night
WSW wind 5 to 10 kt becoming ESE after midnight. Mostly cloudy. Waves around 1 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: 39.1°N 75.26°W
Last Update: 4:09 pm EDT Mar 10, 2026
Forecast Valid: 5pm EDT Mar 10, 2026-6pm EDT Mar 17, 2026
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