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Philadelphia, PA Local Forecast Office

18NM NE Lewes DE

Marine Point Forecast

[NOTICE]

Sunday
High: 69 °F
⇑E 20kt
2-3ft
Sunday Night
Low: 62 °F
S 10kt
3-4ft
Columbus Day
High: 69 °F
N 15kt
4ft
Monday Night
Low: 56 °F
Light Wind
2-3ft
Tuesday
High: 70 °F
⇑S 10kt
2ft
Tuesday Night
Low: 61 °F
S 10kt
1-2ft
Wednesday
High: 76 °F
W 10kt
2ft
Wednesday Night
Low: 58 °F
N 10kt
1-2ft
Thursday
High: 64 °F
N 10kt
1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:09 am EDT Oct 11, 2026
Forecast Valid: 4am EDT Oct 11, 2026-6pm EDT Oct 17, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE MONDAY NIGHT...

Sunday

E wind 15 to 18 kt increasing to 17 to 20 kt in the afternoon. Winds could gust as high as 30 kt. Rain, with thunderstorms also possible after 5pm. Seas 2 to 3 ft.

Sunday Night

S wind 5 to 10 kt becoming SSW after midnight. Rain and thunderstorms before 2am, then a slight chance of showers after 3am. Seas 3 to 4 ft.

Columbus Day

W wind 10 to 15 kt becoming N in the morning. A chance of showers before noon. Seas 4 ft subsiding to 2 ft.

Monday Night

Variable winds 5 kt or less. Mostly clear. Seas 2 to 3 ft.

Tuesday

Variable winds less than 5 kt becoming S 5 to 10 kt in the afternoon. Sunny. Seas around 2 ft.

Tuesday Night

S wind around 10 kt. Mostly clear. Seas 1 to 2 ft.

Wednesday

W wind 5 to 10 kt. Sunny. Seas around 2 ft.

Wednesday Night

NW wind 5 to 10 kt becoming N in the evening. Partly cloudy. Seas 1 to 2 ft.

Thursday

N wind around 10 kt becoming NE in the afternoon. Mostly sunny. Seas around 1 ft.

Winds and seas higher in and near tstms.

*Notices:

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.
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.