Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

For More Weather Information:

Philadelphia, PA Local Forecast Office

17NM N Lewes DE

Marine Point Forecast

[NOTICE]

Wednesday
High: 40 °F
⇑S 15kt
1-2ft
Wednesday Night
Low: 37 °F
⇑SSW 20kt
3ft
Thursday
High: 45 °F
WSW 15kt
1-2ft
Thursday Night
Low: 31 °F
W 10kt
1ft
Friday
High: 36 °F
⇑NW 15kt
1ft
Friday Night
Low: 16 °F
NW 25kt
2-3ft
Saturday
High: 20 °F
N 20kt⇓
2-3ft
Saturday Night
Low: 19 °F
⇑NNE 20kt
1-2ft
Sunday
High: 27 °F
NNE 25kt⇓
2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:10 pm EST Jan 20, 2026
Forecast Valid: 2am EST Jan 21, 2026-6pm EST Jan 27, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EST THIS EVENING...

Wednesday

Variable winds less than 5 kt becoming S 10 to 15 kt in the morning. Winds could gust as high as 25 kt. Sunny. Waves 1 to 2 ft.

Wednesday Night

SSW wind 10 to 15 kt increasing to 15 to 20 kt in the evening. Mostly cloudy. Waves around 3 ft.

Thursday

WSW wind 10 to 15 kt. Sunny. Waves 1 to 2 ft.

Thursday Night

W wind 5 to 10 kt becoming NNW after midnight. Partly cloudy. Waves around 1 ft.

Friday

NW wind 5 to 10 kt increasing to 10 to 15 kt in the afternoon. A slight chance of snow before 1pm. Waves around 1 ft.

Friday Night

NW wind 20 to 25 kt. A slight chance of snow after 1am. Waves 2 to 3 ft.

Saturday

N wind 15 to 20 kt decreasing to 10 to 15 kt in the afternoon. A chance of snow after 1pm. Waves 2 to 3 ft.

Saturday Night

NNE wind 15 to 18 kt increasing to 17 to 20 kt after midnight. Snow. Waves 1 to 2 ft.

Sunday

NNE wind 20 to 25 kt decreasing to 15 to 20 kt in the afternoon. Snow. Waves around 2 ft.

*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.