Severe Weather and Heavy Rainfall from the Midwest to the Ohio Valley; Mid-Summer Heat Continues

Severe thunderstorm and heavy rainfall threats will persist from the Midwest to Lower Great Lakes through Monday, shifting into the Ohio Valley and Central Appalachians Monday evening into Tuesday. Mid-summer heat will continue across much of the CONUS this week, with record highs possible well into the 100s across the south-central High Plains. Read More >

For More Weather Information:

Philadelphia, PA Local Forecast Office

20NM NE Lewes DE

Marine Point Forecast

[NOTICE]

Monday
High: 85 °F
⇑SSW 10kt
< 1ft
Monday Night
Low: 76 °F
SSW 10kt
< 1ft
Tuesday
High: 85 °F
W 10kt
< 1ft
Tuesday Night
Low: 76 °F
Light Wind
< 1ft
Wednesday
High: 82 °F
Light Wind
< 1ft
Wednesday Night
Low: 73 °F
Light Wind
< 1ft
Thursday
High: 82 °F
W 10kt
< 1ft
Thursday Night
Low: 73 °F
Light Wind
< 1ft
Friday
High: 81 °F
W 10kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:08 pm EDT Aug 9, 2026
Forecast Valid: 1am EDT Aug 10, 2026-6pm EDT Aug 16, 2026

View Nearby Observations

Detailed Forecast

Monday

Variable winds less than 5 kt becoming SSW 5 to 10 kt in the afternoon. Sunny. Seas 1 ft or less.

Monday Night

SSW wind 5 to 10 kt becoming W after midnight. A slight chance of showers and thunderstorms, mainly between 10pm and midnight. Seas 1 ft or less.

Tuesday

W wind 5 to 10 kt. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Tuesday Night

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

Wednesday

Variable winds 5 kt or less. A slight chance of showers before 8am. Seas 1 ft or less.

Wednesday Night

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

Thursday

W wind 5 to 10 kt. Mostly sunny. Seas 1 ft or less.

Thursday Night

Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

Friday

NNW wind 5 to 10 kt becoming W in the afternoon. Mostly sunny. Seas 1 ft or less.

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.