Excessive Rainfall and Tropical Storm in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce considerable, potentially life-threatening, flooding across the lower Mississippi River Valley and central Great Lakes region through tonight. Tropical Storm Arthur will move northeastward along the Texas coast today and then move inland over southwestern Louisiana by tonight. An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana. Read More >

Hazardous Weather Conditions

Small Craft Advisory in effect from June 18, 06:00 AM EDT until June 19, 12:00 AM EDT

For More Weather Information:

Philadelphia, PA Local Forecast Office

12NM NE Lewes DE

Marine Point Forecast

[NOTICE]

Tonight
Low: 68 °F
S 15kt
2-3ft
Thursday
High: 87 °F
S 20kt
2-3ft
Thursday Night
Low: 71 °F
W 15kt
2ft
Juneteenth
High: 82 °F
W 10kt
1-2ft
Friday Night
Low: 67 °F
WNW 10kt
1-2ft
Saturday
High: 81 °F
WNW 10kt
1-2ft
Saturday Night
Low: 69 °F
WNW 10kt
1ft
Sunday
High: 79 °F
Light Wind
1ft
Sunday Night
Low: 70 °F
S 10kt
1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:08 pm EDT Jun 17, 2026
Forecast Valid: 7pm EDT Jun 17, 2026-6pm EDT Jun 24, 2026

View Nearby Observations

Detailed Forecast

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

Tonight

S wind around 15 kt, with gusts as high as 20 kt. Mostly cloudy. Waves 2 to 3 ft.

Thursday

S wind 15 to 20 kt, with gusts as high as 30 kt. A chance of showers and thunderstorms, mainly after 3pm. Waves 2 to 3 ft.

Thursday Night

W wind 10 to 15 kt, with gusts as high as 25 kt. A chance of showers and thunderstorms before 3am, then a chance of showers between 3am and 5am, then a slight chance of showers and thunderstorms after 5am. Waves around 2 ft.

Juneteenth

W wind 5 to 10 kt. A chance of showers and thunderstorms before 11am, then a chance of showers between 11am and 2pm. Waves 1 to 2 ft.

Friday Night

WNW wind around 10 kt. Mostly clear. Waves 1 to 2 ft.

Saturday

WNW wind around 10 kt. Sunny. Waves 1 to 2 ft.

Saturday Night

WNW wind around 10 kt. Mostly clear. Waves around 1 ft.

Sunday

Variable winds 5 kt or less. Sunny. Waves around 1 ft.

Sunday Night

S wind around 10 kt. A chance of showers. Waves around 1 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.