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

33NM NNW Lewes DE

Marine Point Forecast

[NOTICE]

Thursday
High: 94 °F
⇑SW 20kt
< 1ft
Thursday Night
Low: 70 °F
W 15kt⇓
< 1ft
Juneteenth
High: 84 °F
WNW 10kt
< 1ft
Friday Night
Low: 64 °F
Light Wind
< 1ft
Saturday
High: 83 °F
WNW 10kt
< 1ft
Saturday Night
Low: 64 °F
Light Wind
< 1ft
Sunday
High: 86 °F
Light Wind
< 1ft
Sunday Night
Low: 67 °F
Light Wind
< 1ft
Monday
High: 86 °F
SW 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: 2am EDT Jun 18, 2026-6pm EDT Jun 24, 2026

View Nearby Observations

Detailed Forecast

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

Thursday

S wind 10 to 15 kt becoming SW 15 to 20 kt in the morning. Winds could gust as high as 30 kt. A chance of showers and thunderstorms, mainly between 2pm and 5pm. Waves 1 ft or less.

Thursday Night

W wind 10 to 15 kt decreasing to 5 to 10 kt after midnight. Winds could gust as high as 25 kt. A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers after 3am. Waves 1 ft or less.

Juneteenth

WNW wind 5 to 10 kt. Cloudy through mid morning, then gradual clearing. Waves 1 ft or less.

Friday Night

Variable winds 5 kt or less. Clear. Waves 1 ft or less.

Saturday

WNW wind 5 to 10 kt. Sunny. Waves 1 ft or less.

Saturday Night

Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.

Sunday

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

Sunday Night

Variable winds 5 kt or less. A chance of showers. Waves 1 ft or less.

Monday

SE wind 5 to 10 kt becoming WSW in the afternoon. Winds could gust as high as 20 kt. Showers. Waves 1 ft or less.

*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.