Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Hazardous Weather Conditions

Small Craft Advisory in effect from August 18, 07:00 AM EDT until August 22, 06:00 AM EDT

For More Weather Information:

Philadelphia, PA Local Forecast Office

8NM SSW Lewes DE

Marine Point Forecast

[NOTICE]

Today
High: 79 °F
⇑NE 15kt
< 1ft
Tonight
Low: 67 °F
ENE 15kt
< 1ft
Tuesday
High: 77 °F
E 15kt
< 1ft
Tuesday Night
Low: 68 °F
E 10kt
< 1ft
Wednesday
High: 81 °F
E 10kt
< 1ft
Wednesday Night
Low: 69 °F
NE 10kt
< 1ft
Thursday
High: 80 °F
NE 20kt
< 1ft
Thursday Night
Low: 66 °F
NNE 15kt
< 1ft
Friday
High: 81 °F
NNE 15kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:11 am EDT Aug 18, 2025
Forecast Valid: 7am EDT Aug 18, 2025-6pm EDT Aug 24, 2025

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT...

Today

NE wind 5 to 10 kt increasing to 10 to 15 kt in the morning. Winds could gust as high as 25 kt. A chance of showers, mainly after 2pm. Seas 1 ft or less.

Tonight

ENE wind around 15 kt, with gusts as high as 25 kt. A chance of showers, mainly between 4am and 5am. Seas 1 ft or less.

Tuesday

E wind 10 to 15 kt. A slight chance of showers. Seas 1 ft or less.

Tuesday Night

E wind 5 to 10 kt. Mostly cloudy. Seas 1 ft or less.

Wednesday

E wind around 10 kt. A slight chance of showers after 2pm. Seas 1 ft or less.

Wednesday Night

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

Thursday

NE wind 15 to 20 kt. Mostly sunny. Seas 1 ft or less.

Thursday Night

NNE wind 10 to 15 kt. Partly cloudy. Seas 1 ft or less.

Friday

NNE wind 10 to 15 kt becoming E in the afternoon. 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.