Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

For More Weather Information:

Philadelphia, PA Local Forecast Office

15NM NE Lewes DE

Marine Point Forecast

[NOTICE]

Tonight
Low: 70 °F
WSW 10kt
1ft
Sunday
High: 82 °F
Light Wind
1ft
Sunday Night
Low: 71 °F
Light Wind
< 1ft
Monday
High: 78 °F
⇑S 20kt
2-3ft
Monday Night
Low: 73 °F
S 15kt⇓
2-3ft
Tuesday
High: 83 °F
Light Wind
2ft
Tuesday Night
Low: 69 °F
Light Wind
1-2ft
Wednesday
High: 81 °F
Light Wind
1ft
Wednesday Night
Low: 70 °F
Light Wind
1-2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:09 pm EDT Jun 20, 2026
Forecast Valid: 4pm EDT Jun 20, 2026-6pm EDT Jun 27, 2026

View Nearby Observations

Detailed Forecast

Tonight

WSW wind 5 to 10 kt. Mostly clear. Seas around 1 ft.

Sunday

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

Sunday Night

Variable winds 5 kt or less. Increasing clouds. Seas 1 ft or less.

Monday

S wind 5 to 10 kt increasing to 15 to 20 kt in the afternoon. Winds could gust as high as 30 kt. A chance of showers and thunderstorms after 2pm. Some of the storms could produce heavy rainfall. Seas 2 to 3 ft.

Monday Night

S wind 12 to 15 kt decreasing to 10 to 13 kt after midnight. Winds could gust as high as 25 kt. A chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then a slight chance of showers after 2am. Some of the storms could produce heavy rainfall. Seas 2 to 3 ft.

Tuesday

Variable winds 5 kt or less. A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Seas around 2 ft.

Tuesday Night

Variable winds 5 kt or less. A chance of showers before 8pm. Seas 1 to 2 ft.

Wednesday

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

Wednesday Night

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