Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. 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

15NM NE Lewes DE

Marine Point Forecast

[NOTICE]

Today
High: 85 °F
S 15kt
3ft
Tonight
Low: 70 °F
W 10kt
1-2ft
Juneteenth
High: 78 °F
Light Wind
1-2ft
Friday Night
Low: 68 °F
WNW 10kt
1-2ft
Saturday
High: 80 °F
WNW 10kt
1-2ft
Saturday Night
Low: 70 °F
Light Wind
1-2ft
Sunday
High: 90 °F
Light Wind
< 1ft
Sunday Night
Low: 71 °F
Light Wind
1-2ft
Monday
High: 88 °F
S 15kt
2-3ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:08 am EDT Jun 18, 2026
Forecast Valid: 6am EDT Jun 18, 2026-6pm EDT Jun 24, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

Today

S wind around 15 kt, with gusts as high as 25 kt. A chance of showers and thunderstorms after 2pm. Seas 1 ft building to 3 ft.

Tonight

W wind around 10 kt. A chance of showers and thunderstorms before 4am, then a slight chance of showers between 4am and 5am, then a chance of showers and thunderstorms after 5am. Seas 1 to 2 ft.

Juneteenth

Variable winds 5 kt or less. Showers and thunderstorms likely before noon, then showers likely between noon and 1pm. Seas 1 to 2 ft.

Friday Night

WNW wind 5 to 10 kt. Mostly clear. Seas 1 to 2 ft.

Saturday

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

Saturday Night

Variable winds 5 kt or less. Mostly clear. Seas 1 to 2 ft.

Sunday

Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

Sunday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms after 2am. Seas 1 to 2 ft.

Monday

S wind 10 to 15 kt, with gusts as high as 20 kt. A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Seas 2 to 3 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.