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Baltimore, MD - Fort Mchenry Marine Weather Forecast

Station BLTM2 - 8574680 - Baltimore, MD

July 3, 2026 12:30 pm EDT
Location: 39.267N 76.579W
Wind Direction: W (270°)
Wind Speed: 4.1 knots
Wind Gust: 7.0 knots
Air Temperature: 100.2°F (37.9°C)
Water Temperature: 84.6°F (29.2°C)


This Afternoon - 102°F
Jul 03, 2026
3 to 8 mph W
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 5pm. Sunny, with a high near 102. Heat index values as high as 114. West wind 3 to 8 mph. Chance of precipitation is 20%.
Tonight - 82°F
Jul 03, 2026
2 to 7 mph W
Chance Showers And Thunderstorms then Partly Cloudy
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 82. Heat index values as high as 110. West wind 2 to 7 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Independence Day - 101°F
Jul 04, 2026
1 to 8 mph W
Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 3pm. Sunny, with a high near 101. Heat index values as high as 109. West wind 1 to 8 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Saturday Night - 77°F
Jul 04, 2026
1 to 8 mph W
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 8pm, then showers and thunderstorms likely between 8pm and 9pm, then a chance of showers and thunderstorms between 9pm and 1am. Mostly cloudy, with a low around 77. Heat index values as high as 101. West wind 1 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Sunday - 93°F
Jul 05, 2026
1 to 7 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 93. Southeast wind 1 to 7 mph. Chance of precipitation is 70%.
Sunday Night - 74°F
Jul 05, 2026
3 to 7 mph SE
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy, with a low around 74. Chance of precipitation is 80%.
Monday - 89°F
Jul 06, 2026
3 to 8 mph E
Showers And Thunderstorms Likely
A chance of rain showers before 2pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 89. Chance of precipitation is 70%.
Monday Night - 72°F
Jul 06, 2026
3 to 8 mph E
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy, with a low around 72. Chance of precipitation is 70%.
Tuesday - 87°F
Jul 07, 2026
3 to 8 mph N
Chance Showers And Thunderstorms
A chance of rain showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 87. Chance of precipitation is 50%.
Tuesday Night - 72°F
Jul 07, 2026
2 to 8 mph NE
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 50%.
Wednesday - 89°F
Jul 08, 2026
2 to 6 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 89. Chance of precipitation is 20%.
Wednesday Night - 73°F
Jul 08, 2026
1 to 5 mph S
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 73. Chance of precipitation is 20%.
Thursday - 92°F
Jul 09, 2026
1 to 6 mph SW
Mostly Sunny
Mostly sunny, with a high near 92.
Thursday Night - 74°F
Jul 09, 2026
1 to 6 mph S
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 8pm. Partly cloudy, with a low around 74.

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