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WeatherLive › Mississippi › Bay Saint Louis

Bay Saint Louis, MS Weather (39520)

Today Hourly 10-Day Weekend Monthly Radar Air Quality Climate
Current WeatherBay Saint Louis · 2:55 AM CDT
85° | 77°
82°F
Feels like 89°
Partly cloudy
WindN 2 mph · Gusts 14 mph
Precip86% · 0.67 in
Humidity79% · Dew point 75°
UV index6 Moderate
Air Quality64 Moderate
Pressure29.94 inHg
Visibility6 mi
Sunrise / Sunset6:31 AM · 7:26 PM · 12h 55m

Weather map — Bay Saint Louis

Full radar →
Now
82°
26%
2 mph
03:00
80°
0.03 in
3 mph
04:00
81°
0.04 in
1 mph
05:00
81°
0.04 in
2 mph
06:00
80°
0.04 in
3 mph
07:00
80°
0.04 in
3 mph
08:00
79°
0.04 in
2 mph
09:00
77°
0.05 in
3 mph
10:00
79°
0.06 in
3 mph
11:00
82°
0.06 in
4 mph
12:00
83°
0.09 in
7 mph
13:00
83°
0.04 in
8 mph
14:00
82°
0.06 in
6 mph
15:00
83°
19%
3 mph
16:00
83°
0.03 in
3 mph
17:00
82°
41%
8 mph
18:00
81°
0.03 in
11 mph
19:00
80°
24%
7 mph
20:00
80°
23%
7 mph
21:00
80°
19%
3 mph
22:00
80°
7%
1 mph
23:00
80°
7%
3 mph
00:00
80°
9%
4 mph
01:00
80°
15%
5 mph

Today · Thu 8/27

High 85°
86% / 0.67 in

Light rain. Winds W at 11 mph.

Overnight · Thu 8/27

Low 77°
67% / 0.03 in

Drizzle. Winds N at 3 mph.

Tomorrow · Fri 8/28

85° | 78°
60% / 0.06 in

Mostly cloudy. Winds SE at 11 mph.

7-day trend

Bay Saint Louis · temperature + precipitation

10-day forecast

Updated 2:55 AM

Details & indices

Wind
2 mph N
Gusts 14 mph
Humidity
79%
Dew point 75°
Pressure
29.94 inHg
Rising
UV index
6 — Moderate
High today
Air Quality
Moderate
AQI 64 · US EPA
Allergy
Moderate
Ragweed
Visibility
6 mi
Clear view
Allergy — Bay Saint Louis

🌿 Conditions right now

View all →
Birch
None
Grass
Low
Oak
None
Alder
None
Hazel
None
Mugwort
Low
Ragweed
Moderate

Sun & moon

Sunrise6:31 AM
Sunset7:26 PM
Length of day12h 55m
Moonrise7:15 PM
Moonset5:54 AM
Moon phase🌕 Full Moon · 99%
Next full moonAug 27 Sturgeon Moon
Latitude30.3088°N
Longitude-89.3300°E

Water temps nearby

View all →
Biloxi Beach (27 mi)90°
🌤️No rain expected in the next 90 minutes
Now+30+60+90 min
Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast
Laundry day
Poor
Line-drying weather
Grilling
Fair
Fire up the grill
Running
Poor
Lace up outside
Patio
Fair
Dinner outdoors
Nearby places in {{REGION}}
🌤️
Jackson
—
—
Data sources · Thursday, August 27
Where the Bay Saint Louis forecast comes from
This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 30.3088°N, -89.3300°.
NBM + global weather models
Updated: 2:55 AM
Weather in Bay Saint Louis
The 10-day span for Bay Saint Louis runs from a high near 86° on Friday down to 77° overnight on Thursday. Models drop roughly 1.6 in of precipitation across the stretch — watch Thursday (86%). No active NWS alerts at the moment — quiet on the hazards front. Right now Bay Saint Louis is about 17° cooler than nearby Hattiesburg. Longer view: humid-subtropical — long summers, mild winters, spring storm season.
Bay Saint Louis, MS · Elev 23 ft · 30.31°N, 89.33°W · Mississippi · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 2:55 AM