Mandeville, Louisiana Weather Conditions

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Current Conditions

  • 80°
  • Clear
  • Wind: ESE 5 mph
  • Humidity: 74%
  • Visibility: 10.0 miles
  • Dew Point: 71°
  • Pressure: 29.91 in. 0
  • Heat Index: 84

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Next 12 Hours

10  am
1  pm
4  pm
7  pm
10  pm
Clear
Clear
Partly Cloudy
Partly Cloudy
Mostly Cloudy
Mostly Cloudy
Partly Cloudy
Partly Cloudy
Fog
Fog
79°
84°
81°
77°
68°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Tuesday
  • Partly Cloudy
  • High: 86 °
  • Low: 68 °
  • Partly Cloudy
  • Wednesday
  • Chance of a Thunderstorm
  • High: 86 °
  • Low: 66 °
  • Chance of a Thunderstorm
  • Thursday
  • Chance of a Thunderstorm
  • High: 86 °
  • Low: 68 °
  • Chance of T-Storms
  • Friday
  • Chance of a Thunderstorm
  • High: 86 °
  • Low: 50 °
  • Chance of T-Storms
  • Saturday
  • Clear
  • High: 82 °
  • Low: 55 °
  • Clear

Forecast for Mandeville, Louisiana

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

  • Tuesday

    Partly cloudy with a chance of a thunderstorm and a chance of rain. High of 86F. Winds less than 5 mph.

  • Tuesday Night

    Partly cloudy. Fog overnight. Low of 68F. Winds less than 5 mph.

  • Wednesday

    Partly cloudy with a chance of a thunderstorm and a chance of rain. High of 86F. Winds from the SSE at 5 to 10 mph. Chance of rain 20%.

  • Wednesday Night

    Partly cloudy with a chance of a thunderstorm and a chance of rain. Fog overnight. Low of 66F. Winds less than 5 mph. Chance of rain 20%.

  • Thursday

    Mostly cloudy with a chance of a thunderstorm and a chance of rain. High of 86F. Winds from the SSE at 5 to 10 mph. Chance of rain 50%.

  • Thursday Night

    Partly cloudy with a chance of a thunderstorm and a chance of rain. Fog overnight. Low of 68F. Winds from the SSW at 5 to 10 mph.

  • Friday

    Overcast with a chance of a thunderstorm and rain. Fog early. High of 86F with a heat index of 91F. Winds from the WSW at 10 to 15 mph. Chance of rain 40% with rainfall amounts near 0.2 in. possible.

  • Friday Night

    Partly cloudy with a chance of a thunderstorm and rain. Fog overnight. Low of 50F. Winds from the North at 10 to 15 mph.

  • Saturday

    Clear. High of 82F. Winds from the NNE at 5 to 15 mph.

  • Saturday Night

    Clear. Low of 55F. Winds from the ENE at 5 to 10 mph.

  • Sunday

    Clear. High of 82F. Winds from the SE at 5 to 15 mph.

  • Sunday Night

    Clear. Fog overnight. Low of 59F. Winds from the SSE at 5 to 15 mph.

  • Monday

    Clear. High of 84F. Winds from the SSE at 5 to 10 mph.

  • Monday Night

    Clear with a chance of a thunderstorm. Fog overnight. Low of 61F. Winds from the SSE at 5 to 10 mph. Chance of rain 20%.

  • Tuesday

    Partly cloudy with a chance of a thunderstorm. High of 84F. Winds from the SE at 5 to 10 mph. Chance of rain 40%.

  • Tuesday Night

    Clear. Fog overnight. Low of 61F. Winds less than 5 mph.

  • Wednesday

    Clear. High of 84F. Winds less than 5 mph.

  • Wednesday Night

    Clear. Fog overnight. Low of 61F. Winds less than 5 mph.

  • Thursday

    Clear. High of 84F. Winds from the East at 5 to 10 mph.

  • Thursday Night

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

  • Friday

    Clear. High of 84F. Winds from the ENE at 5 to 10 mph.

  • Friday Night

    Clear. Fog overnight. Low of 59F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Soult Street/Molitor Street, Mandeville, LA

Updated: 10:48 AM CDT

Temperature: 82.8 °F Dew Point: 75 °F Humidity: 78% Wind: Calm Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: 90 °F Graphs

Location: The Timbers, Mandeville, LA

Updated: 10:45 AM CDT

Temperature: 81.7 °F Dew Point: 73 °F Humidity: 76% Wind: East at 1.4 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: 87 °F Graphs

Location: Woodlands, Mandeville, LA

Updated: 10:48 AM CDT

Temperature: 85.5 °F Dew Point: 71 °F Humidity: 62% Wind: Calm Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: 91 °F Graphs

Location: Bayou Acres, Mandeville, LA

Updated: 10:45 AM CDT

Temperature: 85.8 °F Dew Point: 75 °F Humidity: 70% Wind: West at 1.7 mph Pressure: 29.90 in Hourly Precipitation: - Heat Index: 95 °F Graphs

Location: Mandeville, Mandeville, LA

Updated: 10:36 AM CDT

Temperature: 83.6 °F Dew Point: 74 °F Humidity: 72% Wind: SE at 2.0 mph Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: 90 °F Graphs

Location: Old Mandeville, Mandeville, LA

Updated: 10:36 AM CDT

Temperature: 85.3 °F Dew Point: 74 °F Humidity: 70% Wind: ENE at 2.7 mph Pressure: 29.75 in Hourly Precipitation: - Heat Index: 93 °F Graphs

Location: Deval Estates, Mandeville, LA

Updated: 10:48 AM CDT

Temperature: 82.2 °F Dew Point: 74 °F Humidity: 77% Wind: Calm Pressure: 29.75 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

Location: SHARP ROAD, Mandeville, LA

Updated: 10:48 AM CDT

Temperature: 80.2 °F Dew Point: 74 °F Humidity: 81% Wind: ENE at 2.0 mph Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: 85 °F Graphs

Location: Mandeville, Mandeville, LA

Updated: 10:37 AM CDT

Temperature: 81.9 °F Dew Point: 74 °F Humidity: 78% Wind: Calm Pressure: 29.89 in Hourly Precipitation: - Heat Index: 88 °F Graphs

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

Updated: 10:44 AM CDT

Temperature: 82.9 °F Dew Point: 71 °F Humidity: 68% Wind: East at 3.1 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

Location: Chateau Village Subdivision, Mandeville, LA

Updated: 10:48 AM CDT

Temperature: 85.6 °F Dew Point: 69 °F Humidity: 57% Wind: Calm Pressure: 29.77 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

Location: Estates of Northpark, Covington, LA

Updated: 10:44 AM CDT

Temperature: 87.3 °F Dew Point: 76 °F Humidity: 70% Wind: ENE at 1.0 mph Pressure: 29.81 in Hourly Precipitation: 0.00 in Heat Index: 98 °F Graphs

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

Updated: 9:47 AM CDT

Temperature: 82 °F Dew Point: 72 °F Humidity: 71% Wind: ENE at 3 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 87 °F Graphs

Location: Oak Mill, Lacombe, LA

Updated: 10:48 AM CDT

Temperature: 81.0 °F Dew Point: 74 °F Humidity: 80% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

Location: Covington near Terra Bella Village, Covington, LA

Updated: 10:48 AM CDT

Temperature: 76.5 °F Dew Point: 76 °F Humidity: 97% Wind: Calm Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: River Forest, Covington, LA

Updated: 11:44 AM EDT

Temperature: 82.4 °F Dew Point: 77 °F Humidity: 83% Wind: NE at 1.7 mph Pressure: 29.79 in Hourly Precipitation: - Heat Index: 91 °F Graphs

Location: Port Louis, Madisonville, LA

Updated: 10:48 AM CDT

Temperature: 81.6 °F Dew Point: 73 °F Humidity: 76% Wind: Calm Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: 87 °F Graphs

Location: River Forest, Covington, LA

Updated: 10:48 AM CDT

Temperature: 81.3 °F Dew Point: 73 °F Humidity: 77% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 87 °F Graphs

Location: RAWS SELA PORTABLE LA US, Lacombe, LA

Updated: 9:34 AM CDT

Temperature: 79 °F Dew Point: 74 °F Humidity: 85% Wind: ENE at 1 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Near Tchefuncte River Flood Gauge, Covington, LA

Updated: 10:45 AM CDT

Temperature: 86.0 °F Dew Point: 76 °F Humidity: 71% Wind: WSW at 2.2 mph Pressure: 29.59 in Hourly Precipitation: - Heat Index: 96 °F Graphs

Location: NorthPointe Business Park, Covington, LA

Updated: 10:45 AM CDT

Temperature: 83.5 °F Dew Point: 76 °F Humidity: 77% Wind: North at 1.0 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: 92 °F Graphs

Location: Windermere Subdivision, Madisonville, LA

Updated: 10:48 AM CDT

Temperature: 83.1 °F Dew Point: 74 °F Humidity: 74% Wind: East at 2.0 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: 90 °F Graphs

Location: Circle O Acres, Slidell, LA

Updated: 10:47 AM CDT

Temperature: 84.3 °F Dew Point: 76 °F Humidity: 76% Wind: Calm Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: 93 °F Graphs

Location: Bayou Liberty, Slidell, LA

Updated: 10:40 AM CDT

Temperature: 78.5 °F Dew Point: 73 °F Humidity: 83% Wind: Calm Pressure: 29.91 in Hourly Precipitation: - Heat Index: 81 °F Graphs

Location: Timber Ridge, Slidell, LA

Updated: 10:48 AM CDT

Temperature: 83.7 °F Dew Point: 72 °F Humidity: 69% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: 90 °F Graphs

Location: Hickory, Pearl River, LA

Updated: 10:43 AM CDT

Temperature: 81.2 °F Dew Point: 77 °F Humidity: 86% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

Location: Slidell, LA

Updated: 10:36 AM CDT

Temperature: 83.3 °F Dew Point: 75 °F Humidity: 75% Wind: ESE at 1.0 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: 90 °F Graphs

Location: West Saint Tammany, Covington, LA

Updated: 10:48 AM CDT

Temperature: 88.3 °F Dew Point: 86 °F Humidity: 93% Wind: NE at 1.6 mph Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: 117 °F Graphs

Location: LAKEVIEW DR., Slidell, LA

Updated: 10:41 AM CDT

Temperature: 79.9 °F Dew Point: 75 °F Humidity: 84% Wind: ESE at 2.0 mph Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: 85 °F Graphs

Location: Pearl Hickory, Pearl River, LA

Updated: 10:47 AM CDT

Temperature: 83.1 °F Dew Point: 75 °F Humidity: 76% Wind: SSE at 1.1 mph Pressure: 29.66 in Hourly Precipitation: - Heat Index: 90 °F Graphs

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

Updated: 10:48 AM CDT

Temperature: 81.7 °F Dew Point: 74 °F Humidity: 78% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

Location: Dragonfly, Bush, LA

Updated: 10:48 AM CDT

Temperature: 81.0 °F Dew Point: 74 °F Humidity: 79% Wind: East at 2.0 mph Pressure: 29.80 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

Location: Oak Harbor, Slidell, LA

Updated: 10:48 AM CDT

Temperature: 82.9 °F Dew Point: 74 °F Humidity: 75% Wind: NE at 4.0 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 90 °F Graphs

Location: Eden Isles, Slidell, LA

Updated: 11:48 AM EDT

Temperature: 85.2 °F Dew Point: 75 °F Humidity: 71% Wind: Calm Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: 94 °F Graphs

Location: Oak Harbor, K4QAL, Slidell, LA

Updated: 10:45 AM CDT

Temperature: 81.4 °F Dew Point: 74 °F Humidity: 77% Wind: NE at 3.0 mph Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: 87 °F Graphs

Location: Huckleberry Lane, Folsom, LA

Updated: 10:41 AM CDT

Temperature: 83.9 °F Dew Point: 76 °F Humidity: 76% Wind: Calm Pressure: 29.90 in Hourly Precipitation: - Heat Index: 92 °F Graphs

Location: Bayou Canada West, Ponchatoula, LA

Updated: 10:38 AM CDT

Temperature: 85.1 °F Dew Point: 76 °F Humidity: 75% Wind: Calm Pressure: 29.94 in Hourly Precipitation: - Heat Index: 95 °F Graphs

Location: Bayou Canada North, Ponchatoula, LA

Updated: 10:48 AM CDT

Temperature: 84.6 °F Dew Point: 71 °F Humidity: 63% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

Location: Bayou Canada South, Ponchatoula, LA

Updated: 10:48 AM CDT

Temperature: 82.7 °F Dew Point: 74 °F Humidity: 74% Wind: Calm Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: 89 °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 
403 am CDT Tuesday Sep 30 2014 


Short term...models really struggled with the depth and surge of dry 
air that occurred yesterday. 3-4 days ago they suggested we would 
dry out for Monday and Tuesday but then Sat night they began to suggest the 
boundary would hold further north and moisture would not leave the 
region along with scattered rain showers Monday and today. This was even with what 
should be a short wave ridge moving across the area which would suggest 
subsidence and a big negative on rain chances. Well we should have 
stuck with our GUNS yesterday and kept the forecast dry but will do so 
today. 


Short wave ridging is already moving into the area as the l/west trough slowly 
pushes east over the Continental Divide today. Last night precipitable waters  just 
off to the north were near 1.5 while our boundary drifted well into the 
Gulf. Combine all that with weak northwest flow aloft and it helped keep 
things quiet yesterday. As for today moisture is expected to drop 
even further across much of sela and southern MS along with the ridge 
moving through. This should mean another day of relatively quiet 
weather and actually few clouds in the sky. Enjoy it as this very 
well could be the last dry day until this weekend. 


As we move into Tuesday night and more so Wednesday and Thursday...moisture will be 
back on the rise and our short wave ridge will flatten out and shift to the 
east. By Wednesday precipitable waters  should be back around 2 inch with developing west-southwest 
flow aloft. This will likely send a weak impulse into the region. 
This combined with the increase in moisture and daytime heating 
should allow for scattered convection Wednesday. 


The l/west trough moving across the plains will sharpen and continue to 
slide east. This will increase the SW flow aloft over the region 
with greater broad scale lift in place. Broad divergence aloft will 
also be in place and this along with a rather moist airmass should 
lead to scattered to possibly numerous rain showers and thunderstorms and rain Thursday with convection 
possibly increasing late Thursday/Thursday night as our cold front begins to 
approach the lower MS valley. /Cab/ 


Long term...nothing has really changed in the extended portion of 
the forecast. The medium range models continue to be in great agreement 
with the passage of our first true cold front. Only very minor 
timing and strength differences but overall good agreement. They all 
continue to trend a tad cooler with the European model (ecmwf) the coldest. Again 
will use a blend of the models but will give a little more weight to 
the European model (ecmwf) given the trends. 


Friday will be the last day that we will see convection in the forecast. A 
strong middle level jet dropping out of western Canada will sharpen the l/west 
trough over the central Continental U.S. And cause it to dig as it moves into the 
eastern Continental U.S. Friday night with a closed low likely developing over the Great 
Lakes region. This will drive a cold front through the region Friday 
and with the strong push this front could reach the coast by 
midday/early afternoon Friday. Rain showers and thunderstorms and rain will be likely ahead and with 
the front with some lingering light rain showers immediately behind the 
front but dry cold air will quickly push in Friday afternoon. As for strong 
severe potential...there will be some instability to work with but middle 
level flow will not be that impressive. In addition middle level lapse 
rates are rather shallow and Vermont will only be around 24-25c. Cant 
rule out a rogue strong/severe storm or two but overall not impressed 
with the severe potential with this system. 


Heading into Friday night and this weekend look for our first real 
taste of autumn. Strong cold air advection overnight Friday will overcome any 
mixing from winds and will cool things off impressively with lows 
Sat morning likely ranging from the upper 50s in southwestern MS to middle 60s 
along the coast. If the front is any faster then lows could be a few 
degrees cooler. That said look for Sun morning to be the coldest 
morning since middle may. Dewpoints are expected to drop into the lower 
40s if not the 30s across the region and Sat night optimal rad 
cooling conditions could set up. There are some timing differences 
b/T the models with respect to the surface high but it looks like it will 
sit right over the region that night providing rather light winds. 
Skies should be clear and ll temperatures will not be warming yet and all 
of this would be great for rad cooling potential. If the surface high 
pushes east a tad faster than we may start to see return flow in the 
ll which could Hurt lows but the other limiting factor could be 
ground moisture. If we overachieve with the rainfall on Friday then 
there could still be enough moisture to Hurt the cooling potential. 
As mentioned earlier the trend from all of the mlds has been to go a 
little cooler with each model run and see no reason to disagree with 
this. The European model (ecmwf) has been the most bullish and actually shows middle 40s 
in southwestern MS. Not going to bite on that quite yet but will show 50 for 
mcb and lower 50s along and north of the 10/12 corridor. /Cab/ 


&& 


Aviation... 


Mostly light fog with MVFR conditions is expected to develop at a 
hum...mcb...btr...asd and hdc...mainly between 09-13z. Brief or 
tempo IFR will be possible at hum and mcb. Cloud cover should be 
less than Monday and VFR conditions will prevail after 14z this 
morning through 06z Wednesday. Isolated rain showers this afternoon may 
briefly impact hum...new...msy and btr...very isolated so will not 
mention at this time. 18 


&& 


Marine... 


Light east to southeast will prevail...occasionally variable through 
this evening. Onshore flow will begin to develop late tonight into 
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. 
1000 to 700mb thickness layer decrease about 60m to 70m behind the 
front according to GFS and Euro. 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. 
Later packages will examine the duration of off shore winds over the 
weekend. All in all...a Small Craft Advisory headlines may be needed 
for Friday night into Saturday. 18 


&& 


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 87 70 86 72 / 10 10 30 30 
btr 88 71 87 73 / 10 10 40 30 
asd 86 69 86 72 / 10 10 20 20 
msy 85 74 86 75 / 20 10 40 30 
gpt 85 70 85 73 / 10 20 20 20 
pql 85 66 85 70 / 10 20 20 20 


&& 


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


$$ 


Short/long term: cab 
aviation/marine: 18 








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