Slidell, Louisiana Weather Conditions

Your Weather

To update your location please enter your ZIP code, city, state, airport code or country in the field below. Weather by E-mail: Forecast storm alerts. Weather E-Mail Alert Sign Up »

Current Conditions

  • 72°
  • Clear
  • Wind: Calm
  • Humidity: 91%
  • Visibility: 10.0 miles
  • Dew Point: 69°
  • Pressure: 29.87 in. 0

Select a Section

Click a section below for more information.

Next 12 Hours

1  am
4  am
7  am
10  am
1  pm
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
73°
72°
73°
81°
86°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Wednesday
  • Chance of a Thunderstorm
  • High: 88 °
  • Low: 70 °
  • Chance of T-Storms
  • Thursday
  • Thunderstorm
  • High: 86 °
  • Low: 73 °
  • T-Storms
  • Friday
  • Chance of a Thunderstorm
  • High: 86 °
  • Low: 54 °
  • Chance of T-Storms
  • Saturday
  • Partly Cloudy
  • High: 72 °
  • Low: 50 °
  • Partly Cloudy
  • Sunday
  • Partly Cloudy
  • High: 81 °
  • Low: 59 °
  • Partly Cloudy

Forecast for Slidell, Louisiana

Updated: 10:00 PM CDT on September 30, 2014

  • Wednesday

    Partly cloudy with a chance of a thunderstorm and a chance of rain. High of 88F. Winds from the ENE at 5 to 10 mph shifting to the SE in the afternoon. Chance of rain 30%.

  • Wednesday Night

    Mostly cloudy with a chance of a thunderstorm and a chance of rain. Low of 70F. Winds less than 5 mph. Chance of rain 20%.

  • Thursday

    Mostly cloudy with thunderstorms and rain showers. High of 86F. Winds from the SE at 5 to 10 mph. Chance of rain 60%.

  • Thursday Night

    Overcast with a chance of a thunderstorm and a chance of rain. Fog overnight. Low of 73F. Winds from the South at 5 to 10 mph. Chance of rain 50% with rainfall amounts near 0.2 in. possible.

  • Friday

    Partly cloudy with a chance of a thunderstorm and a chance of rain. High of 86F. Winds from the West at 5 to 15 mph. Chance of rain 40%.

  • Friday Night

    Partly cloudy in the evening, then clear. Low of 54F. Winds from the North at 10 to 15 mph.

  • Saturday

    Clear in the morning, then partly cloudy. High of 72F. Winds from the North at 5 to 15 mph.

  • Saturday Night

    Partly cloudy. Low of 50F. Winds less than 5 mph.

  • Sunday

    Clear in the morning, then partly cloudy. High of 81F. Winds from the SSE at 5 to 10 mph.

  • Sunday Night

    Clear. Fog overnight. Low of 59F. Winds from the South at 5 to 10 mph.

  • Monday

    Clear. High of 82F. Winds less than 5 mph.

  • Monday Night

    Clear. Low of 63F. Winds from the NNE at 5 to 10 mph.

  • Tuesday

    Partly cloudy. High of 82F. Winds from the East at 5 to 10 mph.

  • Tuesday Night

    Clear. Low of 63F. Winds from the SE at 5 to 10 mph.

  • Wednesday

    Clear. High of 81F. Winds less than 5 mph.

  • Wednesday Night

    Clear. Low of 63F. Winds from the East at 5 to 10 mph.

  • Thursday

    Partly cloudy. High of 82F. Winds from the East at 5 to 10 mph.

  • Thursday Night

    Partly cloudy. Low of 64F. Winds from the East at 5 to 10 mph.

  • Friday

    Clear. High of 82F. Winds from the East at 5 to 10 mph.

  • Friday Night

    Clear. Low of 64F. Winds less than 5 mph.

  • Saturday

    Clear. High of 82F. Winds less than 5 mph.

  • Saturday Night

    Clear. Low of 64F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Michigan Ave. The Roy's, Slidell, LA

Updated: 12:56 AM CDT

Temperature: 73.5 °F Dew Point: 72 °F Humidity: 94% Wind: Calm Pressure: 29.84 in Hourly Precipitation: 0.00 in Heat Index: 70 °F Graphs

Location: Oak Harbor, K4QAL, Slidell, LA

Updated: 12:55 AM CDT

Temperature: 76.1 °F Dew Point: 73 °F Humidity: 91% Wind: ESE at 1.0 mph Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Oak Harbor, Slidell, LA

Updated: 12:56 AM CDT

Temperature: 76.6 °F Dew Point: 74 °F Humidity: 91% Wind: SE at 1.0 mph Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Eden Isles, Slidell, LA

Updated: 1:56 AM EDT

Temperature: 77.5 °F Dew Point: 74 °F Humidity: 89% Wind: Calm Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: Slidell, LA

Updated: 12:52 AM CDT

Temperature: 71.9 °F Dew Point: 71 °F Humidity: 97% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: LAKEVIEW DR., Slidell, LA

Updated: 12:42 AM CDT

Temperature: 77.9 °F Dew Point: 75 °F Humidity: 89% Wind: ESE at 11.0 mph Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: Timber Ridge, Slidell, LA

Updated: 12:56 AM CDT

Temperature: 71.7 °F Dew Point: 67 °F Humidity: 86% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 70 °F Graphs

Location: Bayou Liberty, Slidell, LA

Updated: 12:55 AM CDT

Temperature: 71.2 °F Dew Point: 68 °F Humidity: 90% Wind: Calm Pressure: 29.88 in Hourly Precipitation: - Heat Index: - Graphs

Location: Circle O Acres, Slidell, LA

Updated: 12:55 AM CDT

Temperature: 72.1 °F Dew Point: 68 °F Humidity: 87% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 70 °F Graphs

Location: Pearl Hickory, Pearl River, LA

Updated: 12:45 AM CDT

Temperature: 70.0 °F Dew Point: 69 °F Humidity: 96% Wind: Calm Pressure: 29.64 in Hourly Precipitation: - Heat Index: - Graphs

Location: Hickory, Pearl River, LA

Updated: 12:56 AM CDT

Temperature: 72.2 °F Dew Point: 69 °F Humidity: 90% Wind: Calm Pressure: 29.84 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: RAWS SELA PORTABLE LA US, Lacombe, LA

Updated: 11:34 PM CDT

Temperature: 77 °F Dew Point: 73 °F Humidity: 87% Wind: ESE at 4 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Oak Mill, Lacombe, LA

Updated: 12:56 AM CDT

Temperature: 69.6 °F Dew Point: 69 °F Humidity: 99% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: RAWS BIG BRANCH NWR LA US, Lacombe, LA

Updated: 11:47 PM CDT

Temperature: 70 °F Dew Point: 69 °F Humidity: 98% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Shoreline Park, Bay St. Louis, MS

Updated: 12:56 AM CDT

Temperature: 74.9 °F Dew Point: - Humidity: - Wind: SE at 1.0 mph Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Joe's Redneck Weather, Waveland, MS

Updated: 12:56 AM CDT

Temperature: 76.8 °F Dew Point: 73 °F Humidity: 87% Wind: Calm Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Sadie's Weather on Jeff Davis, Waveland, MS

Updated: 12:56 AM CDT

Temperature: 76.8 °F Dew Point: 70 °F Humidity: 79% Wind: SE at 1.6 mph Pressure: 29.80 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Diamondhead, Diamondhead, MS

Updated: 12:56 AM CDT

Temperature: 72.5 °F Dew Point: 71 °F Humidity: 96% Wind: Calm Pressure: 29.68 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Diamondhead, Diamondhead, MS

Updated: 12:51 AM CDT

Temperature: 72.1 °F Dew Point: 70 °F Humidity: 94% Wind: Calm Pressure: 29.79 in Hourly Precipitation: - Heat Index: - Graphs

Location: M/V Microship, Bay St. Louis, MS

Updated: 12:55 AM CDT

Temperature: 77.3 °F Dew Point: 74 °F Humidity: 89% Wind: Calm Pressure: 29.78 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: Carriere, MS

Updated: 12:56 AM CDT

Temperature: 70.6 °F Dew Point: 70 °F Humidity: 99% Wind: Calm Pressure: 29.80 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Diamondhead East, Diamondhead, MS

Updated: 12:43 AM CDT

Temperature: 74.4 °F Dew Point: 73 °F Humidity: 94% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: Pittari Lane, Carriere, MS

Updated: 12:54 AM CDT

Temperature: 68.7 °F Dew Point: 67 °F Humidity: 95% Wind: Calm Pressure: 29.58 in Hourly Precipitation: - Heat Index: - Graphs

Location: Hide_A_Way Lake ~OWX, Carriere, MS

Updated: 12:56 AM CDT

Temperature: 71.4 °F Dew Point: 69 °F Humidity: 93% Wind: Calm Pressure: 29.84 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Bayou Acres, Mandeville, LA

Updated: 12:45 AM CDT

Temperature: 71.2 °F Dew Point: 70 °F Humidity: 96% Wind: Calm Pressure: 29.89 in Hourly Precipitation: - Heat Index: - Graphs

Location: The Timbers, Mandeville, LA

Updated: 12:55 AM CDT

Temperature: 71.2 °F Dew Point: 69 °F Humidity: 92% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Soult Street/Molitor Street, Mandeville, LA

Updated: 12:56 AM CDT

Temperature: 72.1 °F Dew Point: 71 °F Humidity: 96% Wind: Calm Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Woodlands, Mandeville, LA

Updated: 12:56 AM CDT

Temperature: 71.2 °F Dew Point: 71 °F Humidity: 98% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Deval Estates, Mandeville, LA

Updated: 12:56 AM CDT

Temperature: 71.4 °F Dew Point: 70 °F Humidity: 97% Wind: Calm Pressure: 29.72 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Mandeville, Mandeville, LA

Updated: 12:52 AM CDT

Temperature: 72.6 °F Dew Point: 71 °F Humidity: 96% Wind: Calm Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Deer Run Gang, Picayune, MS

Updated: 12:53 AM CDT

Temperature: 69.1 °F Dew Point: 69 °F Humidity: 99% Wind: Calm Pressure: 29.81 in Hourly Precipitation: - Heat Index: - Graphs

Location: Old Mandeville, Mandeville, LA

Updated: 12:48 AM CDT

Temperature: 70.7 °F Dew Point: 70 °F Humidity: 97% Wind: Calm Pressure: 29.72 in Hourly Precipitation: - Heat Index: - Graphs

Location: Mandeville, Mandeville, LA

Updated: 12:52 AM CDT

Temperature: 71.3 °F Dew Point: 70 °F Humidity: 97% Wind: Calm Pressure: 29.86 in Hourly Precipitation: - Heat Index: - Graphs

Location: SHARP ROAD, Mandeville, LA

Updated: 12:56 AM CDT

Temperature: 70.5 °F Dew Point: 69 °F Humidity: 95% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service New Orleans la 
1203 am CDT Wednesday Oct 1 2014 


Aviation... 


Patchy light fog is likely overnight through 13-14z. Most likely 
location to have lowered visibilities is khum...however a couple other 
taf airports could lower to MVFR. Moisture surge on Thursday will 
bring some MVFR ceilings along with isolated to scattered shra/tsra. 
Have added prob30 statement for thunderstorms and rain during the later morning into 
the afternoon. 22/dew point 


&& 


Previous discussion... /issued 753 PM CDT Tuesday Sep 30 2014/ 


Sounding discussion... 


The 00z sounding shows continued dry air advection taking place 
through the day with the dry layer aloft descending from 525mb 
this morning down to 600 mb this evening. There is a weak cap in 
place at 600mb as the air warms where dryer air has advected in. 
This dry air is advecting in on the back of deep layer westerly 
flow above 800mb. Below 800mb...a shallow region of easterly flow 
is in place. This easterly flow has kept moisture in place in the 
low levels...which combined with some very weak instability 
between the surface and 600mb has allowed for a cumulus field to 
develop today. A few low topped convective showers also 
developed...but coverage was very limited due to the limited 
amount of instability in place. 32 


Previous discussion... /issued 431 PM CDT Tuesday Sep 30 2014/ 


Synopsis... 


Weak high pressure ridge extends from Lake Superior to the 
Mississippi coast. Old frontal boundary remains over the central 
Gulf to the south of our area. Low pressure is over South Dakota 
with a cold front into West Texas. This will be a player in our 
forecast later in the week. Some very isolated showers over the 
area...mainly over Plaquemines Parish and the surrounding coastal 
waters. Temperatures generally in the 80s at middle afternoon with 
dew points from middle 60s north to middle 70s at Boothville. 


Short term... 


Expect isolated precipitation to die off before sunset and will 
not carry mention of precipitation in the overnight portion of the 
forecast. As frontal system moves through the Great Plains 
tomorrow...onshore flow will commence the return of moisture. This 
will increase rain chances...mainly over western portions of the 
area on Wednesday. Frontal system will approach the area Thursday 
night and move through during the day on Friday. Some timing 
differences on frontal passage...with forecast trending away from 
slower NAM solution. Best chances for convection appear to be late 
Thursday night into Friday morning...where some likely probability of precipitation are 
indicated. Anticipate that as timing differences diminish...probability of precipitation 
will probably get raised in one of those two periods in later 
forecasts. 


Have gone with a blended solution on temperatures through Thursday 
as numbers are fairly close from the usual guidance sources. 
Friday temperatures will be dependent on timing of cold frontal 
passage. Have trended a bit cooler than mav highs...closer to 
European model (ecmwf) bias corrected numbers. 35 


Long term... 


The extended forecast beyond Friday will be dry...and considerably 
less humid across the area as the cold front moves well into the 
Gulf of Mexico. Drier air will overspread the area into early next 
week. Another shortwave reinforcing the cooler and drier air will 
push a front through the area Monday night or Tuesday. Not out of 
the question a few showers could occur with this front...but will 
keep forecast dry for now. 


Definite cooling trend behind the front with thicknesses and h925 
temperatures dictating about a 10 degree cooloff on high 
temperatures...and possibly closer to 15-20 degrees on low 
temperatures from Friday to Sunday at some Northshore locations 
normally subject to drainage like Slidell and Pascagoula. A brief 
minor modification to the airmass Monday before the reinforcing 
front drops overnight lows back to slightly below normal for 
Tuesday and Wednesday mornings. 35 


Aviation... 


Expect VFR conditions to prevail through the evening and overnight 
hours. There is a chance for some patchy fog to develop over 
portions of the area overnight especially near daybreak. Have 
added fog in to some of the tafs for the early morning hours. 
13/mh 


Marine... 


No major changes to the marine forecast. Things still look to be 
relatively calm. Expect light east to southeast will prevail. 
Onshore flow will begin to develop Wednesday. This flow will 
increase Wednesday night into Thursday as the pressure gradient 
increases between a departing high over the eastern Seaboard and 
developing low in the plains. A strong cold front will push across 
the coastal waters Friday and Friday night. GFS shows warm air 
advection as the main trough moves to the East Coast Saturday and 
surface high over the area. Euro hold cold air advection longer into 
Saturday night. Have increased all in all...a Small Craft Advisory 
headlines may be needed for Friday night into Saturday. 13/mh 


Decision support... 


Dss code...green. 
Deployed...none. 
Activation...none. 
Activities...slurry support. 


Decision support services (dss) code legend 
green = no weather impacts that require action 
blue = long fused watch/warning/advisory in effect or high 
visibility event 
yellow = heightened impacts with short fused 
watch/warning/advisory issuances; radar support 
Orange = high impacts - slight to moderate risk severe; nearby 
tropical events; hazmat or other large episodes 
red = full engagement for moderate to high risk severe 
and/or direct tropical threats; events of National 
significance. 


&& 


Preliminary point temps/pops... 
mcb 69 88 71 88 / 10 30 20 60 
btr 70 88 72 89 / 10 40 30 50 
asd 69 87 72 88 / 10 30 20 60 
msy 73 87 74 88 / 10 30 30 50 
gpt 70 86 73 85 / 10 20 20 50 
pql 68 86 72 86 / 10 10 20 50 


&& 


Lix watches/warnings/advisories... 
la...none. 
GM...none. 
MS...none. 
GM...none. 
&& 


$$ 



National Weather Service Glossary of Abbreviations

Non-Expanded Version (with abbreviations)

Powered by the Weather Underground, Inc.