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Horn Island, MS - Mississippi Sound Marine Weather Forecast

Christmas Day - 64°F
Dec 25, 2025
0 to 5 mph SW
Widespread Fog
Widespread fog. Mostly cloudy, with a high near 64. Southwest wind 0 to 5 mph.
Tonight - 60°F
Dec 25, 2025
5 mph SW
Widespread Fog
Widespread fog. Mostly cloudy, with a low around 60. Southwest wind around 5 mph.
Friday - 66°F
Dec 26, 2025
5 to 10 mph SW
Widespread Fog
Widespread fog before 1pm. Mostly cloudy, with a high near 66. Southwest wind 5 to 10 mph.
Friday Night - 63°F
Dec 26, 2025
5 to 10 mph SW
Partly Cloudy
Partly cloudy, with a low around 63. Southwest wind 5 to 10 mph.
Saturday - 67°F
Dec 27, 2025
5 to 10 mph SW
Mostly Sunny
Mostly sunny, with a high near 67. Southwest wind 5 to 10 mph.
Saturday Night - 63°F
Dec 27, 2025
5 to 10 mph SW
Partly Cloudy
Partly cloudy, with a low around 63. Southwest wind 5 to 10 mph.
Sunday - 69°F
Dec 28, 2025
5 to 10 mph S
Sunny
Sunny, with a high near 69. South wind 5 to 10 mph.
Sunday Night - 59°F
Dec 28, 2025
10 to 15 mph SW
Mostly Cloudy then Chance Rain Showers
A chance of rain showers after midnight. Mostly cloudy, with a low around 59. Southwest wind 10 to 15 mph.
Monday - 64°F
Dec 29, 2025
15 to 20 mph NW
Chance Rain Showers
A chance of rain showers. Partly sunny, with a high near 64. Northwest wind 15 to 20 mph.
Monday Night - 36°F
Dec 29, 2025
20 mph N
Partly Cloudy
Partly cloudy, with a low around 36. North wind around 20 mph.
Tuesday - 46°F
Dec 30, 2025
15 to 20 mph N
Mostly Sunny
Mostly sunny, with a high near 46. North wind 15 to 20 mph.
Tuesday Night - 35°F
Dec 30, 2025
10 mph N
Mostly Clear
Mostly clear, with a low around 35. North wind around 10 mph.
Wednesday - 50°F
Dec 31, 2025
5 to 10 mph NW
Sunny
Sunny, with a high near 50. Northwest wind 5 to 10 mph.
Wednesday Night - 40°F
Dec 31, 2025
5 to 10 mph NW
Mostly Clear
Mostly clear, with a low around 40. Northwest wind 5 to 10 mph.

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