Slidell, Louisiana Weather Conditions

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Current Conditions

  • 92°
  • Scattered Clouds
  • Wind: WSW 7 mph
  • Humidity: 50%
  • Visibility: 10.0 miles
  • Dew Point: 71°
  • Pressure: 30.08 in. -
  • Heat Index: 98

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Next 12 Hours

4  pm
7  pm
10  pm
1  am
4  am
Partly Cloudy
Partly Cloudy
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
91°
86°
79°
81°
75°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Partly Cloudy
  • High: 93 °
  • Low: 75 °
  • Partly Cloudy
  • Friday
  • Chance of a Thunderstorm
  • High: 93 °
  • Low: 75 °
  • Chance of a Thunderstorm
  • Saturday
  • Chance of a Thunderstorm
  • High: 95 °
  • Low: 75 °
  • Chance of a Thunderstorm
  • Sunday
  • Partly Cloudy
  • High: 95 °
  • Low: 75 °
  • Partly Cloudy
  • Monday
  • Partly Cloudy
  • High: 93 °
  • Low: 73 °
  • Partly Cloudy

Forecast for Slidell, Louisiana

Updated: 4:00 PM CDT on August 21, 2014

  • Thursday

    Partly cloudy. High of 93F with a heat index of 99F. Winds from the SW at 5 to 10 mph.

  • Thursday Night

    Clear. Low of 75F. Winds from the WSW at 5 to 10 mph.

  • Friday

    Partly cloudy with a chance of a thunderstorm and a chance of rain in the afternoon. Fog early. High of 93F with a heat index of 102F. Winds less than 5 mph. Chance of rain 20%.

  • Friday Night

    Clear. Low of 75F. Winds less than 5 mph.

  • Saturday

    Partly cloudy with a chance of a thunderstorm and a chance of rain in the morning, then clear with a chance of a thunderstorm and a chance of rain. High of 95F with a heat index of 102F. Winds less than 5 mph. Chance of rain 20%.

  • Saturday Night

    Clear. Low of 75F. Winds from the SW at 5 to 10 mph.

  • Sunday

    Clear. High of 95F with a heat index of 100F. Winds less than 5 mph.

  • Sunday Night

    Partly cloudy. Low of 75F. Winds from the SW at 5 to 10 mph shifting to the WNW after midnight.

  • Monday

    Partly cloudy. High of 93F. Winds from the North at 5 to 10 mph shifting to the East in the afternoon.

  • Monday Night

    Partly cloudy with a chance of a thunderstorm. Fog overnight. Low of 73F. Winds from the ESE at 5 to 10 mph. Chance of rain 40%.

  • Tuesday

    Partly cloudy with a chance of a thunderstorm. High of 91F with a heat index of 99F. Winds from the East at 10 to 15 mph. Chance of rain 50%.

  • Tuesday Night

    Clear. Fog overnight. Low of 73F. Winds from the ESE at 5 to 15 mph.

  • Wednesday

    Partly cloudy with a chance of a thunderstorm. High of 90F with a heat index of 97F. Winds from the East at 10 to 15 mph. Chance of rain 50%.

  • Wednesday Night

    Clear. Fog overnight. Low of 73F. Winds from the ESE at 5 to 15 mph.

  • Thursday

    Clear with a chance of a thunderstorm. High of 91F. Winds less than 5 mph. Chance of rain 40%.

  • Thursday Night

    Clear with a chance of a thunderstorm. Fog overnight. Low of 72F. Winds less than 5 mph. Chance of rain 20%.

  • Friday

    Partly cloudy with a chance of a thunderstorm. High of 90F. Winds from the WSW at 5 to 10 mph. Chance of rain 40%.

  • Friday Night

    Clear. Fog overnight. Low of 77F. Winds from the SW at 5 to 10 mph.

  • Saturday

    Clear with a chance of a thunderstorm. High of 86F. Winds from the WSW at 5 to 10 mph. Chance of rain 50%.

  • Saturday Night

    Clear. Low of 77F. Winds from the SW at 5 to 10 mph.

  • Sunday

    Clear. High of 88F. Winds from the WSW at 5 to 10 mph.

  • Sunday Night

    Clear with a chance of a thunderstorm. Low of 79F. Winds from the SW at 5 to 10 mph. Chance of rain 40%.

  • Monday

    Clear with a chance of a thunderstorm. High of 88F. Winds less than 5 mph. Chance of rain 20%.

  • Monday Night

    Clear. Low of 79F. Winds from the South at 5 to 10 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

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

Updated: 3:00 PM CDT

Temperature: 93.2 °F Dew Point: 77 °F Humidity: 59% Wind: North at 2.0 mph Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 107 °F Graphs

Location: Oak Harbor, K4QAL, Slidell, LA

Updated: 2:55 PM CDT

Temperature: 91.6 °F Dew Point: 72 °F Humidity: 52% Wind: ESE at 4.0 mph Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: 99 °F Graphs

Location: Oak Harbor, Slidell, LA

Updated: 3:00 PM CDT

Temperature: 92.1 °F Dew Point: 76 °F Humidity: 60% Wind: SSE at 5.0 mph Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: 105 °F Graphs

Location: Eden Isles, Slidell, LA

Updated: 4:00 PM EDT

Temperature: 91.8 °F Dew Point: 76 °F Humidity: 61% Wind: Calm Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: 105 °F Graphs

Location: Slidell, LA

Updated: 2:54 PM CDT

Temperature: 94.9 °F Dew Point: 74 °F Humidity: 51% Wind: WSW at 1.0 mph Pressure: 30.07 in Hourly Precipitation: 0.00 in Heat Index: 106 °F Graphs

Location: Tammany Yacht Club, Slidell, LA

Updated: 1:00 PM MST

Temperature: 90.2 °F Dew Point: 77 °F Humidity: 65% Wind: South at 4.0 mph Pressure: 30.08 in Hourly Precipitation: 0.00 in Heat Index: 103 °F Graphs

Location: LAKEVIEW DR., Slidell, LA

Updated: 2:47 PM CDT

Temperature: 90.0 °F Dew Point: 78 °F Humidity: 67% Wind: SSE at 2.0 mph Pressure: 30.07 in Hourly Precipitation: 0.00 in Heat Index: 104 °F Graphs

Location: Timber Ridge, Slidell, LA

Updated: 3:00 PM CDT

Temperature: 94.1 °F Dew Point: 71 °F Humidity: 48% Wind: Calm Pressure: 30.07 in Hourly Precipitation: 0.00 in Heat Index: 102 °F Graphs

Location: Bayou Liberty, Slidell, LA

Updated: 2:55 PM CDT

Temperature: 99.8 °F Dew Point: 77 °F Humidity: 48% Wind: ESE at 1.0 mph Pressure: 30.08 in Hourly Precipitation: - Heat Index: 116 °F Graphs

Location: Circle O Acres, Slidell, LA

Updated: 2:58 PM CDT

Temperature: 95.4 °F Dew Point: 71 °F Humidity: 46% Wind: SW at 1.0 mph Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: 103 °F Graphs

Location: Pearl Hickory, Pearl River, LA

Updated: 2:53 PM CDT

Temperature: 94.5 °F Dew Point: 77 °F Humidity: 58% Wind: Calm Pressure: 29.82 in Hourly Precipitation: - Heat Index: 110 °F Graphs

Location: Hickory, Pearl River, LA

Updated: 2:55 PM CDT

Temperature: 96.5 °F Dew Point: 82 °F Humidity: 64% Wind: Calm Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 122 °F Graphs

Location: RAWS SELA PORTABLE LA US, Lacombe, LA

Updated: 1:34 PM CDT

Temperature: 94 °F Dew Point: 74 °F Humidity: 53% Wind: SE at 4 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 105 °F Graphs

Location: Oak Mill, Lacombe, LA

Updated: 3:00 PM CDT

Temperature: 92.3 °F Dew Point: 76 °F Humidity: 60% Wind: Calm Pressure: 30.07 in Hourly Precipitation: 0.00 in Heat Index: 105 °F Graphs

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

Updated: 1:47 PM CDT

Temperature: 93 °F Dew Point: 73 °F Humidity: 53% Wind: West at 4 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 103 °F Graphs

Location: Shoreline Park, Bay St. Louis, MS

Updated: 3:00 PM CDT

Temperature: 93.2 °F Dew Point: - Humidity: - Wind: SSW at 2.0 mph Pressure: 30.09 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: B and L's in Forest Glen, Lacombe, LA

Updated: 2:59 PM CDT

Temperature: 92.5 °F Dew Point: 75 °F Humidity: 56% Wind: South at 6.9 mph Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: 103 °F Graphs

Location: Joe's Redneck Weather, Waveland, MS

Updated: 3:00 PM CDT

Temperature: 98.4 °F Dew Point: 64 °F Humidity: 32% Wind: SE at 1.6 mph Pressure: 30.07 in Hourly Precipitation: 0.00 in Heat Index: 101 °F Graphs

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

Updated: 3:00 PM CDT

Temperature: 92.7 °F Dew Point: 72 °F Humidity: 51% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 101 °F Graphs

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

Updated: 3:00 PM CDT

Temperature: 93.9 °F Dew Point: 79 °F Humidity: 62% Wind: SW at 3.0 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 112 °F Graphs

Location: Diamondhead East, Diamondhead, MS

Updated: 2:46 PM CDT

Temperature: 91.1 °F Dew Point: 81 °F Humidity: 71% Wind: Calm Pressure: 30.08 in Hourly Precipitation: 0.00 in Heat Index: 110 °F Graphs

Location: Pittari Lane, Carriere, MS

Updated: 2:49 PM CDT

Temperature: 92.7 °F Dew Point: 77 °F Humidity: 60% Wind: Calm Pressure: 29.78 in Hourly Precipitation: - Heat Index: 107 °F Graphs

Location: Hide_A_Way Lake ~OWX, Carriere, MS

Updated: 2:59 PM CDT

Temperature: 95.2 °F Dew Point: 77 °F Humidity: 56% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: 110 °F Graphs

Location: Bayou Acres, Mandeville, LA

Updated: 2:45 PM CDT

Temperature: 98.4 °F Dew Point: 82 °F Humidity: 59% Wind: Calm Pressure: 30.09 in Hourly Precipitation: - Heat Index: 123 °F Graphs

Location: The Timbers, Mandeville, LA

Updated: 3:00 PM CDT

Temperature: 91.9 °F Dew Point: 73 °F Humidity: 54% Wind: Calm Pressure: 30.08 in Hourly Precipitation: 0.00 in Heat Index: 101 °F Graphs

Location: Soult Street/Molitor Street, Mandeville, LA

Updated: 3:00 PM CDT

Temperature: 90.9 °F Dew Point: 74 °F Humidity: 58% Wind: SSE at 1.0 mph Pressure: 30.09 in Hourly Precipitation: 0.00 in Heat Index: 101 °F Graphs

Location: Woodlands, Mandeville, LA

Updated: 12:39 PM CDT

Temperature: 92.3 °F Dew Point: 74 °F Humidity: 55% Wind: Calm Pressure: 30.16 in Hourly Precipitation: 0.00 in Heat Index: 102 °F Graphs

Location: Deval Estates, Mandeville, LA

Updated: 3:00 PM CDT

Temperature: 95.5 °F Dew Point: 72 °F Humidity: 46% Wind: Calm Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: 104 °F Graphs

Location: Old Mandeville, Mandeville, LA

Updated: 2:48 PM CDT

Temperature: 92.8 °F Dew Point: 75 °F Humidity: 56% Wind: WNW at 2.2 mph Pressure: 29.96 in Hourly Precipitation: - Heat Index: 104 °F Graphs

Location: Mandeville, Mandeville, LA

Updated: 2:50 PM CDT

Temperature: 93.7 °F Dew Point: 75 °F Humidity: 54% Wind: South at 2.0 mph Pressure: 30.06 in Hourly Precipitation: - Heat Index: 105 °F Graphs

Location: SHARP ROAD, Mandeville, LA

Updated: 3:00 PM CDT

Temperature: 91.8 °F Dew Point: 74 °F Humidity: 56% Wind: Calm Pressure: 30.08 in Hourly Precipitation: 0.00 in Heat Index: 102 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service New Orleans la 
1232 PM CDT Thursday Aug 21 2014 


Aviation... 
VFR conditions will prevail through the period. Isolated showers 
and thunderstorms are expected this afternoon...but probabilities 
at any given terminal remain too low to mention in tafs. Will need 
to monitor radar trends and issue short term amendments for any 
storms approaching terminals. 


&& 


Previous discussion... /issued 333 am CDT Thursday Aug 21 2014/ 


Short term...convection quickly dissipated in the evening with clouds 
thinning out through the night. Much like last night temperatures cooled 
quickly with much of the area in the middle to upper 70s by 7z with the 
exception of coastal areas which are still in the lower 80s. 


Forecast remains unchanged through the end of the work week and weekend 
with hot and mostly dry conditions expected to continue. Strong middle 
level ridge will dominate the region through the weekend becoming 
centered over the lower MS valley. This will suppress convection over 
the northern half of the County Warning Area but along the coastal areas seabreeze 
interactions will most likely lead to isolated and possibly scattered 
storms. As for temperatures afternoon highs should generally warm up a 
few degrees higher than what we saw yesterday. By this weekend we 
could see numerous locations in the upper 90s and possibly approach 
100 degrees in southwestern MS. H925 temperatures will jump to 28 and possibly 
29c by sun and this mixed down to the surface could push temperatures twrds 
the century mark in isolated locations. As for heat issues...the heat 
index doesnt get out of hand as slightly drier air will be in 
place over the region. Afternoon heat indices look to maximum out around 
106 degrees. Combine that with morning lows likely in the lower 
to middle 70s over much of the area north of I-10 and in the upper 
70s south most locations should be able to recover from the heat. 
Again the exception could be the north.O. Metropolitan where lows could hover 
around 80 so we will need to watch this area. /Cab/ 


Long term...medium range models are in good agreement with the middle 
level pattern to start the week but by Tuesday night/Wednesday they differ 
significantly with respect to the pattern. The ridge will continue 
to dominate the region Monday and into Tuesday but with the center of the 
ridge shifting further north on Monday there is a chance that we 
could get into the erlys with a weak wave pushing into the region 
late Monday. This would provide slightly better rain chances 
beginning Monday night. 


Tuesday night and through the end of the forecast period the models begin to 
diverge with the European model (ecmwf) strengthening the ridge and retrograding it 
back to the middle MS valley and Central Plains. The GFS on The Hand is 
driving a strong short wave into the Central Plains early Wednesday. The main 
protagonist is strong Pacific northwest energy diving south-southeast Monday. The European model (ecmwf) drives 
it further to the south and by Tuesday morning closes off a low over northern 
California with the ridge rebuilding over the MS valley. The GFS 
doesnt dive the energy as far south and instead brings a strong 
short wave into plains Tuesday night/Wednesday with the ridge becoming pinched over 
the Appalachians while losing some of its influence over the County Warning Area. The 
European model (ecmwf) solution would suggest continued warm temperatures and rather low end 
probability of precipitation...15-20%. The GFS solution would lead to near normal temperatures and probability of precipitation 
closer to 30-40%. With the models really struggling we will continue 
to use a blend of the models for Wednesday and Thursday but show a gradual 
increase in probability of precipitation across the region. 


As for your tropical update...the models are really struggling with 
the wave east of the Windward Islands. The 7z tropical weather 
outlook from NHC is still calling for a 70% chance of development 
in the next 5 days but it has shifted east and the models are now 
suggesting that what...if anything develops may stay well east of 
the area and in the Atlantic. With no system having even developed 
yet there is still too much uncertainty to accurately tell where 
an eventual tropical cyclone would go...lets at least see if it 
develops first. As always its approaching the peak of hurricane 
season an with our area along the Gulf Coast we should always 
continue to follow the latest in the tropics. /Cab/ 


Aviation...expect VFR conditions to prevail throughout the morning 
and afternoon hours outside of any afternoon convection. Have not 
included any mention of thunderstorms in tafs...but will have to 
monitor the situation throughout the day. Otherwise...expect light 
southwest winds generally less than 10 knots and partly cloudy skies 
with cloud bases around 4kft during the day. 


Marine... a ridge of high pressure will remain centered over the 
coastal waters through the weekend. Winds will be somewhat light and 
variable as seabreeze and landbreeze interactions dominate the 
nearshore waters. Nocturnal winds along coastline should be stronger 
meanwhile...winds further offshore will be consistent from the south and 
southwest at 5 to 10 knots where the seabreeze is less dominant. By 
early week...winds will shift to the east and will increase to the 
10 to 15 knot range. Seas will generally range from 1 to 2 feet 
through the weekend. As the easterly flow takes hold next week waves 
should climb to the 3 to 5 foot range by Tuesday. 


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 95 74 93 74 / 20 10 20 10 
btr 95 76 95 76 / 20 10 20 10 
asd 94 76 94 76 / 10 10 20 10 
msy 93 78 94 78 / 20 10 20 10 
gpt 94 77 95 76 / 20 10 20 10 
pql 94 75 95 74 / 20 10 20 10 


&& 


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


$$ 














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