Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

For More Weather Information:

Philadelphia, PA Local Forecast Office

27NM SW Philadelphia PA

Marine Point Forecast

[NOTICE]

Tonight
Low: 66 °F
Light Wind
< 1ft
Sunday
High: 81 °F
S 10kt
< 1ft
Sunday Night
Low: 64 °F
Light Wind
< 1ft
Monday
High: 72 °F
NE 10kt
< 1ft
Monday Night
Low: 60 °F
NE 10kt
< 1ft
Tuesday
High: 67 °F
NE 10kt
1ft
Tuesday Night
Low: 57 °F
ENE 10kt
1ft
Wednesday
High: 66 °F
ENE 10kt
1ft
Wednesday Night
Low: 57 °F
NE 15kt
1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:09 pm EDT Sep 19, 2026
Forecast Valid: 5pm EDT Sep 19, 2026-6pm EDT Sep 26, 2026

View Nearby Observations

Detailed Forecast

Tonight

Variable winds 5 kt or less. A slight chance of showers after 3am. Waves 1 ft or less.

Sunday

SSE wind 5 to 10 kt becoming SSW in the afternoon. A chance of showers, with thunderstorms also possible after 5pm. Waves 1 ft or less.

Sunday Night

Variable winds 5 kt or less. Showers and thunderstorms likely before 4am, then a slight chance of showers after 5am. Waves 1 ft or less.

Monday

NE wind 5 to 10 kt. A chance of showers after 2pm. Waves 1 ft or less.

Monday Night

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

Tuesday

NE wind around 10 kt. A chance of showers. Waves around 1 ft.

Tuesday Night

ENE wind around 10 kt. A chance of showers after 2am. Waves around 1 ft.

Wednesday

ENE wind around 10 kt. A chance of showers. Waves around 1 ft.

Wednesday Night

NE wind 10 to 15 kt. A chance of showers. Waves around 1 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.