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

35NM S Philadelphia PA

Marine Point Forecast

[NOTICE]

This Afternoon
High: 40 °F
S 10kt
< 1ft
Tonight
Low: 34 °F
S 10kt
< 1ft
Thursday
High: 48 °F
W 10kt
< 1ft
Thursday Night
Low: 25 °F
Light Wind
< 1ft
Friday
High: 40 °F
⇑W 10kt
< 1ft
Friday Night
Low: 11 °F
NW 10kt
< 1ft
Saturday
High: 20 °F
N 10kt
< 1ft
Saturday Night
Low: 13 °F
Light Wind
< 1ft
Sunday
High: 27 °F
NE 10kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:50 pm EST Jan 21, 2026
Forecast Valid: 3pm EST Jan 21, 2026-6pm EST Jan 28, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

S wind around 10 kt. Sunny. Waves 1 ft or less.

Tonight

S wind around 10 kt. Cloudy, then gradually becoming partly cloudy. Waves 1 ft or less.

Thursday

SW wind 5 to 10 kt becoming W in the afternoon. Winds could gust as high as 20 kt. Mostly sunny. Waves 1 ft or less.

Thursday Night

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

Friday

Variable winds less than 5 kt becoming W 5 to 10 kt in the morning. Partly sunny. Waves 1 ft or less.

Friday Night

NW wind around 10 kt, with gusts as high as 20 kt. Mostly cloudy. Waves 1 ft or less.

Saturday

N wind 5 to 10 kt. Mostly cloudy. Waves 1 ft or less.

Saturday Night

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

Sunday

NE wind around 10 kt. Snow, possibly mixed with sleet. 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.