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

12NM NE Lewes DE

Marine Point Forecast

[NOTICE]

Tonight
Low: 70 °F
SE 15kt
< 1ft
Sunday
High: 78 °F
⇑S 15kt
3ft
Sunday Night
Low: 68 °F
S 15kt⇓
2-3ft
Monday
High: 73 °F
NE 15kt
2ft
Monday Night
Low: 66 °F
ENE 20kt
3ft
Tuesday
High: 71 °F
⇑ENE 25kt
3ft
Tuesday Night
Low: 64 °F
ENE 30kt
4ft
Wednesday
High: 70 °F
NE 30kt
4-5ft
Wednesday Night
Low: 64 °F
NE 30kt
5-6ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:09 pm EDT Sep 19, 2026
Forecast Valid: 9pm EDT Sep 19, 2026-6pm EDT Sep 26, 2026

View Nearby Observations

Detailed Forecast

Tonight

SE wind 10 to 15 kt. Partly cloudy. Seas 1 ft or less.

Sunday

S wind 10 to 13 kt increasing to 12 to 15 kt in the afternoon. Winds could gust as high as 20 kt. Mostly sunny. Seas 1 ft or less building to 3 ft.

Sunday Night

S wind 12 to 15 kt becoming WSW 10 to 13 kt after midnight. A chance of showers and thunderstorms. Seas 2 to 3 ft.

Monday

NE wind around 15 kt, with gusts as high as 20 kt. A chance of showers. Seas around 2 ft.

Monday Night

ENE wind around 20 kt. A chance of showers. Seas around 3 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. A chance of showers. Seas around 3 ft.

Tuesday Night

ENE wind around 30 kt. A chance of showers. Seas around 4 ft.

Wednesday

NE wind around 30 kt, with gusts as high as 40 kt. A chance of showers. Seas 4 to 5 ft.

Wednesday Night

NE wind around 30 kt, with gusts as high as 45 kt. A chance of showers. Seas 5 to 6 ft.

*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.