Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

For More Weather Information:

Philadelphia, PA Local Forecast Office

35NM S Philadelphia PA

Marine Point Forecast

[NOTICE]

Wednesday
High: 88 °F
Light Wind
< 1ft
Wednesday Night
Low: 68 °F
Light Wind
< 1ft
Thursday
High: 85 °F
Light Wind
< 1ft
Thursday Night
Low: 71 °F
Light Wind
< 1ft
Friday
High: 84 °F
Light Wind
< 1ft
Friday Night
Low: 67 °F
Light Wind
< 1ft
Saturday
High: 83 °F
Light Wind
< 1ft
Saturday Night
Low: 67 °F
Light Wind
< 1ft
Sunday
High: 85 °F
Light Wind
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:34 pm EDT Aug 18, 2026
Forecast Valid: 1am EDT Aug 19, 2026-6pm EDT Aug 25, 2026

View Nearby Observations

Detailed Forecast

Wednesday

Variable winds 5 kt or less. Patchy fog before 8am. Waves 1 ft or less.

Wednesday Night

Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.

Thursday

Variable winds 5 kt or less. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Waves 1 ft or less.

Thursday Night

Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Waves 1 ft or less.

Friday

Variable winds 5 kt or less. A chance of showers, mainly after 2pm. Waves 1 ft or less.

Friday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Waves 1 ft or less.

Saturday

Variable winds 5 kt or less. Showers likely. Waves 1 ft or less.

Saturday Night

Variable winds 5 kt or less. A chance of showers. Waves 1 ft or less.

Sunday

Variable winds 5 kt or less. A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Waves 1 ft or less.

Winds and seas higher in and near tstms.

*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.