Areas of Heavy Rainfall and Heat Early This Week

Excessive rainfall may produce locally considerable flash flooding over parts of South Texas, the western Gulf Coast, and lower Mississippi River Valley today into Thursday. Rainfall totals of 5 to 10 inches are expected. Hot temperatures may cause heat illnesses over central and northern California and the Pacific Northwest through Tuesday. Read More >

For More Weather Information:

Philadelphia, PA Local Forecast Office

7NM SSE Lewes DE

Marine Point Forecast

[NOTICE]

This Afternoon
High: 81 °F
NNW 10kt
< 1ft
Tonight
Low: 65 °F
WNW 10kt
< 1ft
Tuesday
High: 75 °F
SE 10kt
< 1ft
Tuesday Night
Low: 66 °F
SSE 10kt
1ft
Wednesday
High: 80 °F
⇑SSE 10kt
1ft
Wednesday Night
Low: 69 °F
S 10kt
1ft
Thursday
High: 90 °F
⇑SSW 15kt
1ft
Thursday Night
Low: 73 °F
SSW 15kt
1ft
Juneteenth
High: 85 °F
W 10kt
1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:08 am EDT Jun 15, 2026
Forecast Valid: 2pm EDT Jun 15, 2026-6pm EDT Jun 21, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

NNW wind around 10 kt. Sunny. Seas 1 ft or less.

Tonight

WNW wind 5 to 10 kt. Mostly clear. Seas 1 ft or less.

Tuesday

NNE wind 5 to 10 kt becoming SE in the afternoon. Sunny. Seas 1 ft or less.

Tuesday Night

SSE wind 5 to 10 kt. Partly cloudy. Seas around 1 ft.

Wednesday

SSE wind 5 to 8 kt increasing to 7 to 10 kt in the afternoon. A chance of showers, mainly before 2pm. Seas around 1 ft.

Wednesday Night

S wind around 10 kt. A slight chance of showers before 8pm. Seas around 1 ft.

Thursday

SSW wind 10 to 13 kt increasing to 12 to 15 kt in the afternoon. Winds could gust as high as 25 kt. Mostly sunny. Seas around 1 ft.

Thursday Night

SSW wind 10 to 15 kt becoming WSW after midnight. A chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Seas around 1 ft.

Juneteenth

W wind around 10 kt. Showers likely. 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.