Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Over 250 million face dangerous heat dome into 4th of July weekend. Click for details. Chevron right
4th of July forecast: Where will storms disrupt outdoor plans? Chevron right

Bay Saint Louis, MS

90°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Bay Saint Louis

Mississippi

90°
No results found.
Try searching for a city, zip code or point of interest.
Get Premium+
Create Your Account Unlock extended daily and hourly forecasts — all with your free account.
Let's Go Chevron right
Have an account already? Log In
settings
Help
Bay Saint Louis, MS Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps
News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel
For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center
Today Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities
Wednesday, July 1

Day

7/1
90°Hi
RealFeel® 110°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
RealFeel Shade™ 99°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
Sunny to partly cloudy and humid; a thunderstorm this afternoon; gusty winds can accompany any downpour
alerts

Heat Advisory

10:00 AM Wednesday - 6:00 PM Wednesday

Max UV Index12.0 (Extreme)

AccuLumen Brightness Index™9 (Very Bright)

WindESE 7 mph

Wind Gusts15 mph

Probability of Precipitation55%

Probability of Thunderstorms33%

Precipitation0.05 in

Rain0.05 in

Hours of Precipitation0.5

Hours of Rain0.5

Cloud Cover19%

Morning

Afternoon

Night

7/1
80°Lo
RealFeel® 89°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
Mainly clear, warm and humid

WindE 6 mph

Wind Gusts9 mph

Probability of Precipitation25%

Probability of Thunderstorms5%

Precipitation0.00 in

Cloud Cover20%

Evening

Overnight

Sun & Moon

14 hrs 04 mins
Rise 5:59 AM
Set 8:03 PM
Waning Gibbous
Rise 9:37 PM
Set 8:13 AM

Temperature History

7/1
High
Low
Forecast
90°
80°
Average
89°
74°
Last Year
92°
71°

Further Ahead

Hourly

10-Day

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather Forecasts

Fourth of July week furnace: Dangerous heat dome for 250 million

1 hour ago

Severe Weather

Thunderstorms to circle massive heat furnace into Fourth of July

1 hour ago

Weather News

America 250 events are being canceled, reshaped as heat dome grips US

38 minutes ago
Live Blog

Live: World Cup 2026 weather updates

LATEST ENTRY

Heat forces officials to change Fan Fest hours in Philadelphia

5 hours ago

Weather Forecasts

Extreme heat, storms and wildfires highlight July 4 weather hazards

2 hours ago

 More Stories

Featured Stories

Astronomy

Asteroid Day marks 1908 impact as scientists ready for new discoveries

1 day ago

Weather News

Chicks fly from nest of famous California eagles Jackie and Shadow

1 day ago

Astronomy

A viral sunset and dueling meteor showers are coming in July

1 day ago

Recreation

12-year-old injured by bison in Yellowstone National Park

2 days ago

Weather News

At least 4 dead in Kentucky floods with more rainfall on the way

3 days ago
World North America United States Mississippi Bay Saint Louis

Weather Near Bay Saint Louis:

  • Houma, LA
  • Metairie, LA
  • New Orleans, LA
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2026 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information | Data Sources

...

...

...