Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

For More Weather Information:

Philadelphia, PA Local Forecast Office

24NM NNE Lewes DE

Marine Point Forecast

[NOTICE]

Thursday
High: 82 °F
Light Wind
1ft
Thursday Night
Low: 72 °F
Light Wind
1ft
Friday
High: 81 °F
Light Wind
1ft
Friday Night
Low: 67 °F
Light Wind
1ft
Saturday
High: 80 °F
Light Wind
1ft
Saturday Night
Low: 68 °F
Light Wind
1ft
Sunday
High: 82 °F
Light Wind
1ft
Sunday Night
Low: 70 °F
Light Wind
1ft
Monday
High: 81 °F
Light Wind
1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 9:03 pm EDT Aug 19, 2026
Forecast Valid: 1am EDT Aug 20, 2026-6pm EDT Aug 26, 2026

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Detailed Forecast

Thursday

Variable winds 5 kt or less. A slight chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 3pm, then showers likely and possibly a thunderstorm after 3pm. Waves around 1 ft.

Thursday Night

Variable winds 5 kt or less. Showers and thunderstorms before 2am, then a slight chance of showers. Waves around 1 ft.

Friday

Variable winds 5 kt or less. A chance of showers after 2pm. Waves around 1 ft.

Friday Night

Variable winds 5 kt or less. A chance of showers, then showers likely and possibly a thunderstorm after 2am. Waves around 1 ft.

Saturday

Variable winds 5 kt or less. Showers likely and possibly a thunderstorm. Waves around 1 ft.

Saturday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms before 2am. Waves around 1 ft.

Sunday

Variable winds 5 kt or less. A chance of showers and thunderstorms after 2pm. Waves around 1 ft.

Sunday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms before 8pm. Waves around 1 ft.

Monday

Variable winds 5 kt or less. Sunny. 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.