National Weather Service Forecast for: Biloxi MS
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Updated: 1:25 am CDT Jun 30, 2026
 
Overnight

Overnight: Clear, with a low around 79. West wind around 5 mph.
Clear

 Tuesday

Tuesday: A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Sunny, with a high near 94. Heat index values as high as 109. Calm wind becoming southwest around 5 mph in the afternoon.
Sunny then
Chance
T-storms
 Tuesday
Night
Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 78. North wind around 5 mph becoming calm in the evening.
Chance
T-storms
 Wednesday

Wednesday: A chance of showers and thunderstorms before 4pm, then a slight chance of showers and thunderstorms after 5pm. Sunny, with a high near 90. Northeast wind 5 to 10 mph becoming southeast in the afternoon. Chance of precipitation is 40%.
Chance
T-storms
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 78. Southeast wind around 5 mph becoming calm in the evening.
Mostly Clear

 Thursday

Thursday: Sunny, with a high near 91. Northeast wind 5 to 10 mph becoming south in the afternoon.
Sunny

 Thursday
Night
Thursday Night: Mostly clear, with a low around 78. South wind around 5 mph becoming calm in the evening.
Mostly Clear

 Friday

Friday: Sunny, with a high near 91. North wind 5 to 10 mph becoming south in the afternoon.
Sunny

 Friday
Night
Friday Night: Mostly clear, with a low around 79. South wind around 5 mph becoming west after midnight.
Mostly Clear
Lo 79 °F Hi 94 °F Lo 78 °F Hi 90 °F Lo 78 °F Hi 91 °F Lo 78 °F Hi 91 °F Lo 79 °F

Heat Advisory
 

Overnight
 
 Clear, with a low around 79. West wind around 5 mph.
Tuesday
 
 A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Sunny, with a high near 94. Heat index values as high as 109. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
 
 A 30 percent chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 78. North wind around 5 mph becoming calm in the evening.
Wednesday
 
 A chance of showers and thunderstorms before 4pm, then a slight chance of showers and thunderstorms after 5pm. Sunny, with a high near 90. Northeast wind 5 to 10 mph becoming southeast in the afternoon. Chance of precipitation is 40%.
Wednesday Night
 
 Mostly clear, with a low around 78. Southeast wind around 5 mph becoming calm in the evening.
Thursday
 
 Sunny, with a high near 91. Northeast wind 5 to 10 mph becoming south in the afternoon.
Thursday Night
 
 Mostly clear, with a low around 78. South wind around 5 mph becoming calm in the evening.
Friday
 
 Sunny, with a high near 91. North wind 5 to 10 mph becoming south in the afternoon.
Friday Night
 
 Mostly clear, with a low around 79. South wind around 5 mph becoming west after midnight.
Independence Day
 
 A chance of showers and thunderstorms after 1pm. Sunny, with a high near 91. Northwest wind 5 to 10 mph becoming south in the afternoon.
Saturday Night
 
 A slight chance of showers and thunderstorms. Mostly clear, with a low around 79. Southwest wind around 5 mph.
Sunday
 
 A chance of showers and thunderstorms. Sunny, with a high near 89. West wind 5 to 10 mph becoming south in the afternoon.
Sunday Night
 
 A chance of showers and thunderstorms. Mostly clear, with a low around 79. Southwest wind 5 to 10 mph.
Monday
 
 A chance of showers and thunderstorms. Mostly sunny, with a high near 89. West wind 5 to 10 mph becoming south in the afternoon.

 

Forecast from NOAA-NWS for Biloxi MS.