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Grand Bay Nerr, MS - Mississippi Sound Marine Weather Forecast

Overnight - 60°F
Dec 28, 2025
0 to 5 mph S
Areas Of Fog
Areas of fog after 1am. Mostly cloudy, with a low around 60. South wind 0 to 5 mph.
Sunday - 73°F
Dec 28, 2025
5 to 10 mph S
Areas Of Fog
Areas of fog before 5pm. Mostly sunny. High near 73, with temperatures falling to around 69 in the afternoon. South wind 5 to 10 mph.
Sunday Night - 50°F
Dec 28, 2025
5 to 10 mph SW
Slight Chance Rain Showers
A slight chance of rain showers between 8pm and 3am, then a chance of rain showers and patchy fog. Mostly cloudy. Low around 50, with temperatures rising to around 59 overnight. Southwest wind 5 to 10 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Monday - 64°F
Dec 29, 2025
10 to 15 mph N
Chance Rain Showers then Partly Sunny
A chance of rain showers before noon. Partly sunny, with a high near 64. North wind 10 to 15 mph, with gusts as high as 35 mph. Chance of precipitation is 30%.
Monday Night - 32°F
Dec 29, 2025
10 mph N
Partly Cloudy
Partly cloudy, with a low around 32. North wind around 10 mph, with gusts as high as 35 mph.
Tuesday - 50°F
Dec 30, 2025
10 mph N
Mostly Sunny
Mostly sunny, with a high near 50. North wind around 10 mph, with gusts as high as 25 mph.
Tuesday Night - 28°F
Dec 30, 2025
5 mph N
Mostly Clear then Widespread Frost
Widespread frost after 2am. Mostly clear, with a low around 28. North wind around 5 mph.
Wednesday - 53°F
Dec 31, 2025
5 mph NW
Widespread Frost then Sunny
Widespread frost before 7am. Sunny, with a high near 53. Northwest wind around 5 mph.
Wednesday Night - 36°F
Dec 31, 2025
5 mph W
Partly Cloudy then Slight Chance Rain Showers
A slight chance of rain showers after midnight. Partly cloudy, with a low around 36. West wind around 5 mph.
New Year's Day - 58°F
Jan 01, 2026
5 mph W
Areas Of Frost then Sunny
Areas of frost before 7am. Sunny, with a high near 58. West wind around 5 mph.
Thursday Night - 42°F
Jan 01, 2026
0 to 5 mph W
Mostly Cloudy
Mostly cloudy, with a low around 42. West wind 0 to 5 mph.
Friday - 64°F
Jan 02, 2026
0 to 5 mph W
Partly Sunny
Partly sunny, with a high near 64. West wind 0 to 5 mph.
Friday Night - 50°F
Jan 02, 2026
5 mph S
Mostly Cloudy then Slight Chance Rain Showers
A slight chance of rain showers after midnight. Mostly cloudy, with a low around 50. South wind around 5 mph.
Saturday - 67°F
Jan 03, 2026
5 to 10 mph S
Chance Rain Showers
A chance of rain showers. Partly sunny, with a high near 67. South wind 5 to 10 mph.

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