Severe Weather Possible from the Central Plains to the Northeast; Building Heat in the West; Fire Weather Concerns for the Southwest

Severe thunderstorms are possible from the Ohio Valley to the central Plains this evening, and the threat will expand into the Mid-Atlantic and Northeast on Monday. Hazardous heat will linger across the southern U.S. and build across the West through mid-week. Hot and dry conditions will fuel fire weather concerns for Alaska through this evening and for the Four Corners region through Monday. Read More >

Hazardous Weather Conditions

Small Craft Advisory in effect from June 22, 03:00 PM EDT until June 23, 12:00 AM EDT

For More Weather Information:

Philadelphia, PA Local Forecast Office

24NM NNE Lewes DE

Marine Point Forecast

[NOTICE]

Tonight
Low: 69 °F
Light Wind
< 1ft
Monday
High: 81 °F
⇑S 15kt
< 1ft
Monday Night
Low: 70 °F
S 15kt
1ft
Tuesday
High: 80 °F
Light Wind
< 1ft
Tuesday Night
Low: 66 °F
Light Wind
< 1ft
Wednesday
High: 80 °F
Light Wind
< 1ft
Wednesday Night
Low: 67 °F
Light Wind
< 1ft
Thursday
High: 82 °F
⇑SSE 10kt
< 1ft
Thursday Night
Low: 70 °F
SSE 10kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:09 pm EDT Jun 21, 2026
Forecast Valid: 8pm EDT Jun 21, 2026-6pm EDT Jun 28, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY AFTERNOON THROUGH

Tonight

Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.

Monday

S wind 10 to 13 kt increasing to 12 to 15 kt in the afternoon. Winds could gust as high as 30 kt. A chance of showers and thunderstorms, mainly after 5pm. Some of the storms could produce heavy rainfall. Waves 1 ft or less.

Monday Night

S wind 10 to 15 kt, with gusts as high as 25 kt. Showers and thunderstorms likely, mainly before 3am, then a slight chance of thunderstorms after 4am. Some of the storms could produce heavy rainfall. Waves around 1 ft.

Tuesday

Variable winds 5 kt or less. A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Waves 1 ft or less.

Tuesday Night

Variable winds 5 kt or less. Showers likely before 8pm. Waves 1 ft or less.

Wednesday

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

Wednesday Night

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

Thursday

Variable winds less than 5 kt becoming SSE 5 to 10 kt in the afternoon. Sunny. Waves 1 ft or less.

Thursday Night

SSE wind 5 to 10 kt. A chance of showers. Waves 1 ft or less.

*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.