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Charlestown, MD - Northeast River Marine Weather Forecast

This Afternoon - 100°F
Jul 03, 2026
5 to 8 mph SW
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 5pm. Sunny, with a high near 100. Heat index values as high as 112. Southwest wind 5 to 8 mph. Chance of precipitation is 20%.
Tonight - 81°F
Jul 03, 2026
3 to 8 mph W
Chance Showers And Thunderstorms then Partly Cloudy
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 81. Heat index values as high as 109. West wind 3 to 8 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Independence Day - 99°F
Jul 04, 2026
2 to 8 mph W
Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 4pm. Sunny, with a high near 99. Heat index values as high as 109. West wind 2 to 8 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Saturday Night - 76°F
Jul 04, 2026
2 to 8 mph W
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 10pm, then showers and thunderstorms likely between 10pm and 11pm, then a chance of showers and thunderstorms between 11pm and 2am. Mostly cloudy, with a low around 76. Heat index values as high as 100. West wind 2 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Sunday - 92°F
Jul 05, 2026
5 mph SE
Showers And Thunderstorms Likely
A slight chance of rain showers before 7am, then showers and thunderstorms likely. Partly sunny, with a high near 92. Southeast wind around 5 mph. Chance of precipitation is 70%.
Sunday Night - 73°F
Jul 05, 2026
8 mph E
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 80%.
Monday - 86°F
Jul 06, 2026
7 mph E
Showers And Thunderstorms Likely
A chance of rain showers before 2pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 86. Chance of precipitation is 70%.
Monday Night - 71°F
Jul 06, 2026
5 to 8 mph E
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy, with a low around 71. Chance of precipitation is 70%.
Tuesday - 84°F
Jul 07, 2026
7 mph N
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 40%.
Tuesday Night - 71°F
Jul 07, 2026
2 to 7 mph NE
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.
Wednesday - 86°F
Jul 08, 2026
5 mph N
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
A slight chance of rain showers before 2pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 20%.
Wednesday Night - 72°F
Jul 08, 2026
3 mph SW
Slight Chance Showers And Thunderstorms then Partly Cloudy
A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 72. Chance of precipitation is 20%.
Thursday - 88°F
Jul 09, 2026
1 to 5 mph SW
Mostly Sunny
Mostly sunny, with a high near 88.
Thursday Night - 74°F
Jul 09, 2026
5 mph S
Slight Chance Rain Showers
A slight chance of rain showers after 8pm. Partly cloudy, with a low around 74.

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