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 >

Hazardous Weather Conditions

Small Craft Advisory in effect from September 21, 11:00 AM EDT until September 21, 06:00 PM EDT

For More Weather Information:

Philadelphia, PA Local Forecast Office

18NM NE Lewes DE

Marine Point Forecast

[NOTICE]

Today
High: 77 °F
S 15kt
2-3ft
Tonight
Low: 62 °F
SSW 10kt
2ft
Monday
High: 75 °F
⇑NE 15kt
2ft
Monday Night
Low: 60 °F
ENE 15kt
2-3ft
Tuesday
High: 74 °F
⇑ENE 25kt
3-4ft
Tuesday Night
Low: 59 °F
ENE 25kt⇓
3-4ft
Wednesday
High: 73 °F
NE 25kt
4ft
Wednesday Night
Low: 62 °F
NE 30kt
4-5ft
Thursday
High: 69 °F
NE 25kt
4ft

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 15 kt becoming S in the afternoon. Partly sunny. Seas 2 to 3 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 2 ft.

Monday

NE wind 5 to 10 kt increasing to 10 to 15 kt in the afternoon. A chance of showers, mainly between 2pm and 3pm. Seas around 2 ft.

Monday Night

ENE wind 10 to 15 kt, with gusts as high as 20 kt. A chance of showers. Seas 2 to 3 ft.

Tuesday

ENE wind 15 to 20 kt increasing to 20 to 25 kt in the afternoon. Winds could gust as high as 30 kt. Showers likely. Seas 3 to 4 ft.

Tuesday Night

ENE wind 20 to 25 kt decreasing to 15 to 20 kt after midnight. Winds could gust as high as 35 kt. A chance of showers, with thunderstorms also possible after 2am. Seas 3 to 4 ft.

Wednesday

NE wind 20 to 25 kt, with gusts as high as 35 kt. A chance of showers. Seas around 4 ft.

Wednesday Night

NE wind 25 to 30 kt, with gusts as high as 35 kt. A chance of showers. Seas 4 to 5 ft.

Thursday

NE wind around 25 kt, with gusts as high as 35 kt. A chance of showers. Seas around 4 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.