Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

For More Weather Information:

Philadelphia, PA Local Forecast Office

11NM S Lewes DE

Marine Point Forecast

[NOTICE]

Sunday
High: 77 °F
Light Wind
1ft
Sunday Night
Low: 67 °F
Light Wind
1ft
Monday
High: 79 °F
SSE 10kt
1ft
Monday Night
Low: 66 °F
S 10kt⇓
1ft
Tuesday
High: 82 °F
⇑S 15kt
1ft
Tuesday Night
Low: 68 °F
S 10kt
1ft
Wednesday
High: 83 °F
NW 10kt
1ft
Wednesday Night
Low: 70 °F
Light Wind
1ft
Thursday
High: 82 °F
N 10kt
1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:22 am EDT Jul 26, 2026
Forecast Valid: 1am EDT Jul 26, 2026-6pm EDT Aug 1, 2026

View Nearby Observations

Detailed Forecast

Sunday

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

Sunday Night

Variable winds 5 kt or less. Patchy fog after 5am. Seas around 1 ft.

Monday

SSE wind 5 to 10 kt. A chance of showers, with thunderstorms also possible after 2pm. Patchy fog between 7am and 8am. Seas around 1 ft.

Monday Night

S wind 7 to 10 kt decreasing to 5 to 8 kt after midnight. A slight chance of showers and thunderstorms, then a chance of showers after 2am. Seas around 1 ft.

Tuesday

S wind 5 to 10 kt increasing to 10 to 15 kt in the afternoon. Winds could gust as high as 20 kt. A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. Seas around 1 ft.

Tuesday Night

S wind 5 to 10 kt becoming W after midnight. Showers and possibly a thunderstorm before 2am, then a chance of showers. Seas around 1 ft.

Wednesday

NW wind 5 to 10 kt. A chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Seas around 1 ft.

Wednesday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms before 8pm. Seas around 1 ft.

Thursday

N wind 5 to 10 kt. Mostly sunny. Seas around 1 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.