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 >

Hazardous Weather Conditions

Small Craft Advisory in effect from January 21, 01:00 PM EST until January 22, 07:00 AM EST

For More Weather Information:

Philadelphia, PA Local Forecast Office

4NM E Lewes DE

Marine Point Forecast

[NOTICE]

Today
High: 42 °F
⇑S 20kt
2-3ft

Small Craft Advisory
Tonight
Low: 38 °F
SW 15kt
3ft

Small Craft Advisory
Thursday
High: 47 °F
SW 10kt
2-3ft
Thursday Night
Low: 33 °F
NW 10kt
2ft
Friday
High: 39 °F
WNW 10kt
2ft
Friday Night
Low: 18 °F
NW 20kt
4ft
Saturday
High: 23 °F
N 20kt⇓
3-4ft
Saturday Night
Low: 20 °F
NNE 15kt
3-4ft
Sunday
High: 32 °F
NE 20kt
5-6ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:11 am EST Jan 21, 2026
Forecast Valid: 7am EST Jan 21, 2026-6pm EST Jan 27, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM EST THIS AFTERNOON

Today

Variable winds less than 5 kt becoming S 15 to 20 kt in the morning. Sunny. Seas 2 to 3 ft.

Tonight

SW wind around 15 kt, with gusts as high as 20 kt. Increasing clouds. Seas around 3 ft.

Thursday

SW wind around 10 kt becoming W in the afternoon. Sunny. Seas 2 to 3 ft.

Thursday Night

WNW wind 5 to 10 kt becoming NNW after midnight. Partly cloudy. Seas around 2 ft.

Friday

NNW wind around 10 kt becoming WNW in the afternoon. A slight chance of snow. Seas around 2 ft.

Friday Night

NW wind 15 to 20 kt, with gusts as high as 25 kt. Mostly cloudy. Seas 2 ft building to 4 ft.

Saturday

N wind 15 to 20 kt decreasing to 10 to 15 kt in the afternoon. A chance of snow after 1pm. Seas 3 to 4 ft.

Saturday Night

NNE wind 10 to 15 kt, with gusts as high as 20 kt. Snow. Seas 3 to 4 ft.

Sunday

NE wind around 20 kt, with gusts as high as 25 kt. Snow. Seas 5 to 6 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.