Severe Thunderstorms and Flash Flooding Risks - Saturday, July 18th

Scattered to numerous severe thunderstorms are likely across the region on Saturday, July 18th, including a risk of flash flooding for portions of the area. View this briefing for the details regarding these hazards. Read More >

For More Weather Information:

Philadelphia, PA Local Forecast Office

33NM NNW Lewes DE

Marine Point Forecast

[NOTICE]

Saturday
High: 92 °F
W 10kt
< 1ft
Saturday Night
Low: 73 °F
S 10kt
< 1ft
Sunday
High: 85 °F
NW 10kt
< 1ft
Sunday Night
Low: 67 °F
Light Wind
< 1ft
Monday
High: 84 °F
Light Wind
< 1ft
Monday Night
Low: 70 °F
Light Wind
< 1ft
Tuesday
High: 83 °F
S 10kt
< 1ft
Tuesday Night
Low: 74 °F
SSW 10kt
< 1ft
Wednesday
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 Jul 18, 2026
Forecast Valid: 4am EDT Jul 18, 2026-6pm EDT Jul 24, 2026

View Nearby Observations

Detailed Forecast

Saturday

S wind 5 to 10 kt becoming W in the afternoon. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. Some of the storms could be severe. Widespread smoke, mainly before 11am. Waves 1 ft or less.

Saturday Night

S wind 5 to 10 kt becoming WSW after midnight. Showers and thunderstorms before 2am, then a chance of showers. Some of the storms could be severe. Waves 1 ft or less.

Sunday

NW wind around 10 kt. Mostly cloudy, then gradually becoming sunny. Waves 1 ft or less.

Sunday Night

Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.

Monday

Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

Monday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms, mainly after 2am. Waves 1 ft or less.

Tuesday

S wind 5 to 10 kt. A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Waves 1 ft or less.

Tuesday Night

SSW wind around 10 kt. Showers and possibly a thunderstorm before 2am, then showers likely. Waves 1 ft or less.

Wednesday

W wind around 10 kt. Showers likely, with thunderstorms also possible after 2pm. Waves 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.