Severe Thunderstorms in the Central Plains and Lower Missouri Valley; Heat Continues in the Southeast and Southwest

Severe thunderstorms capable of large hail and damaging wind gusts are forecast to impact the central Plains into the Lower Missouri Valley through this afternoon. Dangerous heat persists across the southern Plains, Southeast U.S. and Puerto Rico this week, and will return to the Southwest today. Read More >

For More Weather Information:

Philadelphia, PA Local Forecast Office

24NM NNE Lewes DE

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:Variable winds 5 kt or less. Isolated showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 9pm.  Patchy fog between 10pm and 2am.  Waves 1 ft or less.

      Low: 70 °F

      Light Wind
      < 1ft

    • Wednesday

      Wednesday:Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

      High: 85 °F

      Light Wind
      < 1ft

    • Wednesday Night

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

      Low: 72 °F

      Light Wind
      < 1ft

    • Thursday

      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.

      High: 84 °F

      Light Wind
      < 1ft

    • Thursday Night

      Thursday Night:Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm, then a chance of showers after 11pm.   Waves 1 ft or less.

      Low: 68 °F

      Light Wind
      < 1ft

    • Friday

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

      High: 81 °F

      Light Wind
      < 1ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. A chance of showers and thunderstorms, then showers likely after 2am.   Waves 1 ft or less.

      Low: 69 °F

      Light Wind
      < 1ft

    • Saturday

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

      High: 80 °F

      Light Wind
      < 1ft

    • Saturday Night

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

      Low: 70 °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: 6pm EDT Aug 18, 2026-6pm EDT Aug 25, 2026

View Nearby Observations

Detailed Forecast


Tonight
Variable winds 5 kt or less. Isolated showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 9pm. Patchy fog between 10pm and 2am. Waves 1 ft or less.
Wednesday
Variable winds 5 kt or less. Sunny. 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 and thunderstorms between 8pm and 11pm, then a chance of showers after 11pm. 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 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.

Winds and seas higher in and near tstms.

*Notices:

  1. 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.
  2. 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.
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ABOUT THIS FORECAST

Point Forecast: 39.12°N 74.88°W
Last Update: 2:34 pm EDT Aug 18, 2026
Forecast Valid: 6pm EDT Aug 18, 2026-6pm EDT Aug 25, 2026
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