BAY ST LOUIS, MS 39520 Weather Forecast & Current Conditions

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SLIDELL, LA
Current Weather

1:53 PM CDT AUG 26, 2025
Clear
90°F
Feels Like: 92°F
Dewpoint: 66°F
Rel. Hum.: 45%
Visibility: 10 miles
Wind: ESE at 8 mph
Pressure: 30.11 inches
Last 72 hours

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BAY ST LOUIS, MS 39520
Weather Forecast

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Snow Depth pages
REST OF TODAY
Partly sunny. A slight chance of showers and thunderstorms this afternoon. Highs in the lower 80s. Temperature falling into the upper 70s this afternoon. South winds 5 to 10 mph. Chance of rain 20 percent.
TONIGHT
Mostly cloudy. Areas of fog. Lows in the upper 60s. Southeast winds 5 to 10 mph.
THURSDAY
Patchy fog in the morning. Mostly cloudy in the morning, then mostly sunny with a slight chance of showers in the afternoon. Highs in the lower 80s. South winds 5 to 10 mph. Chance of rain 20 percent.
THURSDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 60s. South winds 5 to 10 mph, becoming southwest after midnight.
FRIDAY
Mostly cloudy with a 20 percent chance of showers. Highs in the lower 80s. Northwest winds 5 to 10 mph.
FRIDAY NIGHT
Partly cloudy in the evening, then clearing. Cooler with lows in the mid 50s.
SATURDAY
Sunny. Highs in the upper 70s.
SATURDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 60s.
SUNDAY
Mostly cloudy with a slight chance of showers in the morning, then partly sunny with a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 40 percent.
SUNDAY NIGHT
A slight chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the upper 50s. Chance of rain 50 percent.
MONDAY
Partly sunny. Cooler with highs around 70.
MONDAY NIGHT
Partly cloudy. Lows in the upper 40s.
TUESDAY
Sunny. Highs in the upper 60s.

Visible Weather Satellite
BAY ST LOUIS, MS 39520
Infrared Weather Satellite
BAY ST LOUIS, MS 39520
NEXRAD Weather Radar
BAY ST LOUIS, MS 39520

SLIDELL, LA 3 hourly weather forecast

weather forecast created  7:00 AM CDT  8/26/2025
Tuesday
26 AUG 2025
BAY ST LOUIS, MS 39520 weather forecast Day 1, 12 hours 1 PM 88° 90° Clear 5%

0% Thunder
( 23% severe)
E   7 47% 65°
High 90° BAY ST LOUIS, MS 39520 weather forecast Day 1, 15 hours 4 PM 89° 91° Clear E   7 45% 65°
Clear



BAY ST LOUIS, MS 39520 weather forecast Day 1, 18 hours 7 PM 84° 87° Clear 2%

0% Thunder
( 8% severe)
SSE   3 59% 68°
BAY ST LOUIS, MS 39520 weather forecast Day 1, 21 hours 10 PM 77° 79° Clear S   1 76% 69°
Wednesday
27 AUG 2025
BAY ST LOUIS, MS 39520 weather forecast Day 2, 0 hours 1 AM 73° 73° Clear 2%

0% Thunder
( 4% severe)
NNE   1 84% 68°
Low 68° BAY ST LOUIS, MS 39520 weather forecast Day 2, 3 hours 4 AM 71° 71° Clear NE   5 81% 65°
High 90° BAY ST LOUIS, MS 39520 weather forecast Day 2, 6 hours 7 AM 69° 69° Partly Cloudy 5%

0% Thunder
( 13% severe)
NE   7 78% 62°

Partly Cloudy



BAY ST LOUIS, MS 39520 weather forecast Day 2, 9 hours 10 AM 79° 81° Partly Cloudy ENE   8 58% 63°
BAY ST LOUIS, MS 39520 weather forecast Day 2, 12 hours 1 PM 86° 87° Clear 10%
RAIN
<.01 in
0% Thunder
( 31% severe)
ENE   7 46% 63°
BAY ST LOUIS, MS 39520 weather forecast Day 2, 15 hours 4 PM 87° 89° Partly Cloudy ESE   5 48% 65°
BAY ST LOUIS, MS 39520 weather forecast Day 2, 18 hours 7 PM 82° 85° Partly Cloudy 1%

0% Thunder
( 11% severe)
SSE   2 61% 67°
BAY ST LOUIS, MS 39520 weather forecast Day 2, 21 hours 10 PM 76° 77° Clear SE   1 76% 68°
Thursday
28 AUG 2025
BAY ST LOUIS, MS 39520 weather forecast Day 3, 0 hours 1 AM 73° 73° Clear 0%

0% Thunder
( 4% severe)
  CALM 81% 67°
Low 69° BAY ST LOUIS, MS 39520 weather forecast Day 3, 3 hours 4 AM 70° 70° Clear NE   1 84% 65°
High 91° BAY ST LOUIS, MS 39520 weather forecast Day 3, 6 hours 7 AM 69° 69° Clear 1%

0% Thunder
( 14% severe)
NE   2 84% 64°

Clear



BAY ST LOUIS, MS 39520 weather forecast Day 3, 9 hours 10 AM 82° 85° Clear ENE   3 61% 67°
BAY ST LOUIS, MS 39520 weather forecast Day 3, 15 hours 1 PM 88° 91° Clear 9%

0% Thunder
( 45% severe)
S   5 50% 67°
BAY ST LOUIS, MS 39520 weather forecast Day 3, 18 hours 4 PM 87° 90° Partly Cloudy S   6 52% 67°
BAY ST LOUIS, MS 39520 weather forecast Day 3, 21 hours 7 PM 82° 85° Partly Cloudy     SSE   5 65% 69°

SLIDELL, LA extended weather forecast

Friday
29 AUG 2025
Saturday
30 AUG 2025
Sunday
31 AUG 2025
Monday
1 SEP 2025
Tuesday
2 SEP 2025
Low 69° Low 69° Low 70° Low 72° Low 71°
High 84° High 84° High 86° High 87° High 87°
BAY ST LOUIS, MS 39520 weather forecast Day 4 BAY ST LOUIS, MS 39520 weather forecast Day 5 BAY ST LOUIS, MS 39520 weather forecast Day 6 BAY ST LOUIS, MS 39520 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Overcast
64% Rain
Overcast
74% Rain
Overcast
71% Rain
Overcast
66% Rain
Overcast
49% Rain
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