How is the weather in Bay Saint Louis, MS?

At 4:47 AM on Sat, Sep 20, 2025 it is 71 degrees Fahrenheit, feeling like 71 degrees.

Bay Saint Louis, MS Weather Forecast and Current Conditions (39520)

71°F
Feels Like 71°F

Humidity 99% Dew Point 71°F Wind Calm 0 MPH Barometer 29.87 in.758.7 mm

Solar Rad 0 w/m2 UV Index 0

Report from 2.3 miles WSW of central Bay Saint Louis at 4:47 AM Sat, Sep 20, 2025

Current Weather

71°F
Feels Like 71°F

Humidity 99% Dew Point 71°F Wind Calm 0 MPH Barometer 29.87 in.758.7 mm

Solar Rad 0 w/m2 UV Index 0

Report from 2.3 miles WSW of central Bay Saint Louis at 4:47 AM Sat, Sep 20, 2025

Forecast at a Glance

SatSep 20

10%

89°

74°

SunSep 21

10%

88°

75°

MonSep 22

20%

87°

77°

TueSep 23

20%

87°

76°

WedSep 24

50%

87°

75°

ThuSep 25

40%

87°

73°

FriSep 26

20%

89°

This Date in Weather History

1926 - A hurricane which hit Miami, FL, on the 18th, pounded Pensacola with wind gusts to 152 mph. Winds raged in excess of 100 mph for four hours, and above 75 mph for 20 hours.

Bay Saint Louis 7 Day Weather Forecast Details

Saturday Sep 20

Day: Mostly sunny, with a high near 89. Southeast wind around 5 mph.

Night: Partly cloudy, with a low around 74. Southwest wind 0 to 5 mph.

Sunday Sep 21

Day: Mostly sunny, with a high near 88. East wind 0 to 10 mph.

Night: Mostly clear, with a low around 75. Southeast wind 5 to 10 mph.

Monday Sep 22

Day: A slight chance of showers and thunderstorms after 4pm. Sunny, with a high near 87. Southeast wind 5 to 15 mph. Chance of precipitation is 20%.

Night: A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 77. Southeast wind 5 to 10 mph. Chance of precipitation is 20%.

Tuesday Sep 23

Day: A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 87. Southeast wind 5 to 10 mph.

Night: A slight chance of showers and thunderstorms. Mostly clear, with a low around 76. South wind 5 to 10 mph.

Wednesday Sep 24

Day: A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 87. South wind 5 to 10 mph.

Night: A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 75. Southwest wind 5 to 10 mph.

Thursday Sep 25

Day: A chance of rain showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 87. Southwest wind 5 to 10 mph.

Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 73. West wind 5 to 10 mph.

Friday Sep 26

Day: A slight chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Sunny, with a high near 89. West wind 5 to 10 mph.

Sun & Moon Monthly

First Light 6:21 AM

Sunrise 6:45 AM

Sunset 6:58 PM

Last Light 7:22 PM

Moonrise 5:41 AM

Moonset 6:30 PM

Moon Phase

Close Tide Stations

St. Louis Bay entrance
(1.2 miles away)

Waveland
(2.9 miles away)

Wolf River, Henderson Avenue bridge
(4.8 miles away)

Lakes Weather - Plan for a Beautiful Day

Data costs money. Servers cost money. Our website is made possible by displaying online advertisements to our visitors. Please consider supporting us by disabling your ad blocker, contribute to WeatherForYou.com by buying me a coffee or subscribe to our ClearSky ad-free service.

Weather Near Bay Saint Louis

Long, MS

Keesler Air Force Base, MS

White Sand, MS

Hi Land, LA

Agricola, MS

Contiguous United States Extremes

Fri's High Temperature
104 at 4 Miles South Of Tolleson, AZ

Fri's Low Temperature
23 at 4 Miles Northwest Of Grand Lake, CO and 16 Miles West Of Redfeather Lakes, CO

Weather Folklore

The hooting of the owl brings rain.

Current subscribers - login to your ClearSky account