Areas of Dangerous Heat and Heavy Rainfall Today

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley today. Heat Advisories remain in effect. Heavy to excessive rainfall today could bring areas of flooding to parts of the northern High Plains and Midwest into the Ohio Valley. Flood Watches remain in effect. Read More >

For More Weather Information:

Philadelphia, PA Local Forecast Office

24NM NNE Lewes DE

Marine Point Forecast

[NOTICE]

Tonight
Low: 63 °F
S 10kt
< 1ft
Monday
High: 74 °F
ENE 10kt
1ft
Monday Night
Low: 60 °F
ENE 15kt
1ft
Tuesday
High: 71 °F
ENE 20kt
1ft
Tuesday Night
Low: 58 °F
NE 20kt
1ft
Wednesday
High: 69 °F
NE 20kt
1ft
Wednesday Night
Low: 58 °F
NE 20kt
1ft
Thursday
High: 67 °F
NE 20kt
1ft
Thursday Night
Low: 56 °F
NE 15kt
1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:15 pm EDT Sep 20, 2026
Forecast Valid: 7pm EDT Sep 20, 2026-6pm EDT Sep 27, 2026

View Nearby Observations

Detailed Forecast

Tonight

S wind 5 to 10 kt becoming NNW after midnight. Showers and thunderstorms likely before midnight, then a chance of showers between midnight and 3am. Waves 1 ft or less.

Monday

NNE wind around 10 kt becoming ENE in the afternoon. Partly sunny. Waves around 1 ft.

Monday Night

ENE wind 10 to 15 kt. A slight chance of showers before 2am, then a chance of showers after 3am. Waves around 1 ft.

Tuesday

ENE wind 15 to 20 kt, with gusts as high as 25 kt. Showers likely, mainly after 7am. Waves around 1 ft.

Tuesday Night

NE wind around 20 kt, with gusts as high as 30 kt. A chance of showers. Waves around 1 ft.

Wednesday

NE wind around 20 kt, with gusts as high as 30 kt. A chance of showers. Waves around 1 ft.

Wednesday Night

NE wind around 20 kt, with gusts as high as 25 kt. A chance of showers after 2am. Waves around 1 ft.

Thursday

NE wind around 20 kt, with gusts as high as 30 kt. A chance of showers. Waves around 1 ft.

Thursday Night

NE wind around 15 kt, with gusts as high as 25 kt. A chance of showers. Waves 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.