Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

For More Weather Information:

Philadelphia, PA Local Forecast Office

20NM NNW Lewes DE

Marine Point Forecast

[NOTICE]

Tonight
Low: 27 °F
NNE 20kt⇓
2ft
Tuesday
High: 39 °F
NNE 10kt⇓
1ft
Tuesday Night
Low: 36 °F
SW 20kt
1-2ft
Wednesday
High: 47 °F
SSW 25kt
3ft
Wednesday Night
Low: 38 °F
SW 25kt
3-4ft
Thursday
High: 42 °F
WNW 20kt
2-3ft
Thursday Night
Low: 33 °F
WNW 20kt
2ft
Friday
High: 39 °F
WNW 15kt
1ft
Friday Night
Low: 33 °F
⇑WSW 20kt
3ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:10 pm EST Dec 8, 2025
Forecast Valid: 6pm EST Dec 8, 2025-6pm EST Dec 15, 2025

View Nearby Observations

Detailed Forecast

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

Tonight

NNE wind 17 to 20 kt decreasing to 15 to 18 kt after midnight. Cloudy, then gradual clearing toward daybreak. Waves around 2 ft.

Tuesday

NNE wind 7 to 10 kt becoming ESE 5 to 8 kt in the afternoon. Sunny. Waves around 1 ft.

Tuesday Night

SW wind 15 to 20 kt. Increasing clouds. Waves 1 to 2 ft.

Wednesday

SSW wind 20 to 25 kt. A chance of rain after 1pm. Waves around 3 ft.

Wednesday Night

SW wind 20 to 25 kt becoming W after midnight. A slight chance of rain before 1am. Waves 3 to 4 ft.

Thursday

WNW wind around 20 kt. Mostly sunny. Waves 2 to 3 ft.

Thursday Night

WNW wind 15 to 20 kt. Partly cloudy. Waves around 2 ft.

Friday

WNW wind around 15 kt. Mostly sunny. Waves around 1 ft.

Friday Night

WSW wind 10 to 15 kt increasing to 15 to 20 kt after midnight. A chance of snow. Waves 1 ft building to 3 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.