Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Sunday could bring areas of flooding to parts of the upper Midwest, central Great Lakes, southern New England and Virginia/North Carolina tidewater region. Read More >

For More Weather Information:

Philadelphia, PA Local Forecast Office

6NM S Lewes DE

Marine Point Forecast

[NOTICE]

Overnight
Low: 69 °F
Light Wind
< 1ft
Friday
High: 84 °F
Light Wind
< 1ft
Friday Night
Low: 68 °F
Light Wind
< 1ft
Saturday
High: 77 °F
ENE 10kt
< 1ft
Saturday Night
Low: 68 °F
E 10kt
< 1ft
Sunday
High: 79 °F
S 10kt
< 1ft
Sunday Night
Low: 68 °F
Light Wind
< 1ft
Monday
High: 76 °F
⇑ENE 15kt
< 1ft
Monday Night
Low: 66 °F
ENE 10kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:09 pm EDT Sep 17, 2026
Forecast Valid: 11pm EDT Sep 17, 2026-6pm EDT Sep 24, 2026

View Nearby Observations

Detailed Forecast

Overnight

Variable winds 5 kt or less. A slight chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 2am. Seas 1 ft or less.

Friday

Variable winds 5 kt or less. Mostly sunny. Seas 1 ft or less.

Friday Night

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

Saturday

ENE wind around 10 kt. Mostly sunny. Seas 1 ft or less.

Saturday Night

E wind around 10 kt becoming SE after midnight. Partly cloudy. Seas 1 ft or less.

Sunday

S wind around 10 kt. Partly sunny. Seas 1 ft or less.

Sunday Night

Variable winds 5 kt or less. Showers likely, mainly before 2am. Seas 1 ft or less.

Monday

NNE wind 5 to 8 kt becoming ENE 10 to 15 kt in the afternoon. A chance of showers. Seas 1 ft or less.

Monday Night

ENE wind around 10 kt. A chance of showers. Seas 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.