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Horn Island, MS - Mississippi Sound Marine Weather Forecast

Overnight - 72°F
Apr 28, 2026
10 mph S
Partly Cloudy
Partly cloudy, with a low around 72. South wind around 10 mph.
Tuesday - 75°F
Apr 28, 2026
10 to 15 mph SE
Mostly Sunny
Mostly sunny, with a high near 75. Southeast wind 10 to 15 mph.
Tuesday Night - 73°F
Apr 28, 2026
10 to 15 mph S
Mostly Cloudy
Mostly cloudy, with a low around 73. South wind 10 to 15 mph.
Wednesday - 76°F
Apr 29, 2026
10 to 15 mph SW
Partly Sunny
Partly sunny, with a high near 76. Southwest wind 10 to 15 mph.
Wednesday Night - 70°F
Apr 29, 2026
10 to 15 mph SW
Chance Showers And Thunderstorms
A chance of showers and thunderstorms between 7pm and 10pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Southwest wind 10 to 15 mph. Chance of precipitation is 40%.
Thursday - 76°F
Apr 30, 2026
5 to 10 mph NE
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 76. Northeast wind 5 to 10 mph. Chance of precipitation is 50%.
Thursday Night - 68°F
Apr 30, 2026
5 to 15 mph NE
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Northeast wind 5 to 15 mph. Chance of precipitation is 50%.
Friday - 73°F
May 01, 2026
15 mph E
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a high near 73. East wind around 15 mph.
Friday Night - 64°F
May 01, 2026
15 to 25 mph SW
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy, with a low around 64. Southwest wind 15 to 25 mph.
Saturday - 68°F
May 02, 2026
15 to 25 mph N
Showers And Thunderstorms
Showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 68. North wind 15 to 25 mph.
Saturday Night - 57°F
May 02, 2026
15 to 20 mph N
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. North wind 15 to 20 mph.
Sunday - 70°F
May 03, 2026
10 to 15 mph N
Slight Chance Showers And Thunderstorms
A slight chance of rain showers before 7am, then a slight chance of showers and thunderstorms between 7am and 1pm. Mostly sunny, with a high near 70. North wind 10 to 15 mph.
Sunday Night - 58°F
May 03, 2026
10 mph N
Mostly Clear
Mostly clear, with a low around 58. North wind around 10 mph.
Monday - 71°F
May 04, 2026
5 to 10 mph SE
Sunny
Sunny, with a high near 71. Southeast wind 5 to 10 mph.

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