Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

For More Weather Information:

Philadelphia, PA Local Forecast Office

19NM NE Lewes DE

Marine Point Forecast

[NOTICE]
    • Today

      Today:SE wind 10 to 13 kt becoming S 12 to 15 kt in the afternoon. Winds could gust as high as 20 kt. Partly sunny. Seas 3 to 4 ft.

      High: 76 °F

      ⇑S 15kt
      3-4ft

    • Tonight

      Tonight:SSW wind 5 to 10 kt becoming NW after midnight. Rain and thunderstorms likely before 2am, then a chance of rain.   Seas around 3 ft.

      Low: 66 °F

      SSW 10kt
      3ft

    • Monday

      Monday:NNE wind 10 to 13 kt increasing to 12 to 15 kt in the afternoon. Winds could gust as high as 20 kt. A chance of showers, mainly between 2pm and 3pm.   Seas 2 to 3 ft.

      High: 74 °F

      ⇑NNE 15kt
      2-3ft

      Small Craft Advisory
      Small Craft Advisory

    • Monday Night

      Monday Night:ENE wind around 15 kt, with gusts as high as 25 kt. A chance of showers.   Seas 4 to 5 ft.

      Low: 64 °F

      ENE 15kt
      4-5ft

    • Tuesday

      Tuesday:ENE wind 20 to 23 kt increasing to 22 to 25 kt in the afternoon. Winds could gust as high as 35 kt. Showers likely.   Seas 6 to 7 ft.

      High: 72 °F

      ⇑ENE 25kt
      6-7ft

    • Tuesday Night

      Tuesday Night:ENE wind 20 to 25 kt, with gusts as high as 35 kt. A chance of showers, with thunderstorms also possible after 2am.   Seas 8 to 9 ft.

      Low: 63 °F

      ENE 25kt
      8-9ft

    • Wednesday

      Wednesday:NE wind around 25 kt, with gusts as high as 40 kt. A chance of showers.   Seas around 9 ft.

      High: 70 °F

      NE 25kt
      9ft

    • Wednesday Night

      Wednesday Night:NE wind 25 to 30 kt, with gusts as high as 40 kt. A chance of showers.   Seas around 10 ft.

      Low: 63 °F

      NE 30kt
      10ft

    • Thursday

      Thursday:NE wind 25 to 30 kt, with gusts as high as 40 kt. A chance of showers.   Seas 10 to 11 ft.

      High: 69 °F

      NE 30kt
      10-11ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:09 am EDT Sep 20, 2026
Forecast Valid: 6am EDT Sep 20, 2026-6pm EDT Sep 26, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH

Today
SE wind 10 to 13 kt becoming S 12 to 15 kt in the afternoon. Winds could gust as high as 20 kt. Partly sunny. Seas 3 to 4 ft.
Tonight
SSW wind 5 to 10 kt becoming NW after midnight. Rain and thunderstorms likely before 2am, then a chance of rain. Seas around 3 ft.
Monday
NNE wind 10 to 13 kt increasing to 12 to 15 kt in the afternoon. Winds could gust as high as 20 kt. A chance of showers, mainly between 2pm and 3pm. Seas 2 to 3 ft.
Monday Night
ENE wind around 15 kt, with gusts as high as 25 kt. A chance of showers. Seas 4 to 5 ft.
Tuesday
ENE wind 20 to 23 kt increasing to 22 to 25 kt in the afternoon. Winds could gust as high as 35 kt. Showers likely. Seas 6 to 7 ft.
Tuesday Night
ENE wind 20 to 25 kt, with gusts as high as 35 kt. A chance of showers, with thunderstorms also possible after 2am. Seas 8 to 9 ft.
Wednesday
NE wind around 25 kt, with gusts as high as 40 kt. A chance of showers. Seas around 9 ft.
Wednesday Night
NE wind 25 to 30 kt, with gusts as high as 40 kt. A chance of showers. Seas around 10 ft.
Thursday
NE wind 25 to 30 kt, with gusts as high as 40 kt. A chance of showers. Seas 10 to 11 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: 38.98°N 74.8°W
Last Update: 4:09 am EDT Sep 20, 2026
Forecast Valid: 6am EDT Sep 20, 2026-6pm EDT Sep 26, 2026
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