| National Weather Service Forecast for:
Bay St. Louis MS Issued by: National Weather Service New Orleans/Baton Rouge, LA |
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| Updated: 2:52 pm CST Dec 19, 2025 | ||||||||||||||||||
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| Tonight |
Clear, with a low around 48. Northeast wind around 5 mph becoming east after midnight. |
| Saturday |
Sunny, with a high near 66. Southeast wind 5 to 10 mph. |
| Saturday Night |
Increasing clouds, with a low around 58. South wind 5 to 10 mph. |
| Sunday |
A 30 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 66. East wind 5 to 10 mph. |
| Sunday Night |
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 58. East wind 5 to 10 mph. |
| Monday |
Mostly sunny, with a high near 65. East wind 10 to 15 mph. |
| Monday Night |
Mostly clear, with a low around 57. East wind 5 to 10 mph. |
| Tuesday |
Sunny, with a high near 68. East wind 5 to 10 mph. |
| Tuesday Night |
Partly cloudy, with a low around 57. East wind around 5 mph becoming calm after midnight. |
| Wednesday |
Partly sunny, with a high near 67. East wind 5 to 10 mph. |
| Wednesday Night |
Mostly cloudy, with a low around 57. Southeast wind around 5 mph becoming calm after midnight. |
| Christmas Day |
Partly sunny, with a high near 68. Light east wind becoming southeast 5 to 10 mph in the morning. |
| Thursday Night |
Mostly cloudy, with a low around 57. South wind around 5 mph. |
| Friday |
Partly sunny, with a high near 69. South wind 5 to 10 mph. |
Forecast from NOAA-NWS for Bay St. Louis MS.
