Mandeville, Louisiana Weather Conditions

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Current Conditions

  • 80°
  • Clear
  • Wind: Calm
  • Humidity: 81%
  • Visibility: 10.0 miles
  • Dew Point: 74°
  • Pressure: 30.11 in. +
  • Heat Index: 84

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Next 12 Hours

10  pm
1  am
4  am
7  am
10  am
Clear
Clear
Clear
Clear
Partly Cloudy
Partly Cloudy
Fog
Fog
Chance of a Thunderstorm
Chance of T-storms
79°
81°
79°
75°
88°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • 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
  • Chance of a Thunderstorm
  • High: 97 °
  • Low: 75 °
  • Chance of a Thunderstorm
  • Monday
  • Partly Cloudy
  • High: 97 °
  • Low: 75 °
  • Partly Cloudy
  • Tuesday
  • Chance of a Thunderstorm
  • High: 93 °
  • Low: 75 °
  • Chance of T-Storms

Forecast for Mandeville, Louisiana

Updated: 10:00 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 in the evening, then partly cloudy. 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. High of 93F with a heat index of 99F. Winds less than 5 mph. Chance of rain 20%.

  • Friday Night

    Partly cloudy with a chance of a thunderstorm and a chance of rain. Low of 75F. Winds less than 5 mph.

  • Saturday

    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

    Partly cloudy with a chance of a thunderstorm and a chance of rain. Low of 75F. Winds less than 5 mph.

  • Sunday

    Mostly cloudy in the morning, then clear with a chance of a thunderstorm and a chance of rain. High of 97F. Winds less than 5 mph. Chance of rain 20%.

  • Sunday Night

    Partly cloudy with a chance of a thunderstorm and a chance of rain. Low of 75F. Winds from the West at 5 to 10 mph.

  • Monday

    Clear in the morning, then partly cloudy. High of 97F. Winds from the North at 5 to 10 mph shifting to the East in the afternoon.

  • Monday Night

    Mostly cloudy with a chance of a thunderstorm and rain. Low of 75F. Winds from the ESE at 5 to 10 mph. Chance of rain 40%.

  • Tuesday

    Partly cloudy with a chance of a thunderstorm and rain. High of 93F with a heat index of 99F. Winds from the East at 10 to 15 mph. Chance of rain 50%.

  • Tuesday Night

    Clear. Low of 75F. Winds from the ESE at 5 to 15 mph.

  • Wednesday

    Partly cloudy with a chance of a thunderstorm. High of 93F. Winds from the East at 10 to 15 mph. Chance of rain 50%.

  • Wednesday Night

    Partly cloudy. 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. Low of 73F. Winds less than 5 mph. Chance of rain 20%.

  • Friday

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

  • Friday Night

    Clear. Low of 73F. Winds less than 5 mph.

  • Saturday

    Clear with a chance of a thunderstorm. High of 91F. Winds less than 5 mph. Chance of rain 50%.

  • Saturday Night

    Clear. Low of 73F. Winds less than 5 mph.

  • Sunday

    Clear. High of 93F. Winds less than 5 mph.

  • Sunday Night

    Clear with a chance of a thunderstorm. Low of 72F. Winds less than 5 mph. Chance of rain 40%.

  • Monday

    Clear with a chance of a thunderstorm. High of 93F. Winds less than 5 mph. Chance of rain 20%.

  • Monday Night

    Clear. Low of 72F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Soult Street/Molitor Street, Mandeville, LA

Updated: 8:57 PM CDT

Temperature: 80.8 °F Dew Point: 75 °F Humidity: 83% Wind: Calm Pressure: 30.12 in Hourly Precipitation: 0.00 in Heat Index: 87 °F Graphs

Location: The Timbers, Mandeville, LA

Updated: 8:55 PM CDT

Temperature: 80.2 °F Dew Point: 73 °F Humidity: 79% Wind: Calm Pressure: 30.10 in Hourly Precipitation: 0.00 in Heat Index: 85 °F Graphs

Location: Woodlands, Mandeville, LA

Updated: 8:57 PM CDT

Temperature: 79.7 °F Dew Point: 74 °F Humidity: 82% Wind: Calm Pressure: 30.14 in Hourly Precipitation: 0.00 in Heat Index: 84 °F Graphs

Location: Bayou Acres, Mandeville, LA

Updated: 8:53 PM CDT

Temperature: 78.8 °F Dew Point: 76 °F Humidity: 90% Wind: Calm Pressure: 30.11 in Hourly Precipitation: - Heat Index: 82 °F Graphs

Location: Old Mandeville, Mandeville, LA

Updated: 8:54 PM CDT

Temperature: 78.4 °F Dew Point: 74 °F Humidity: 87% Wind: Calm Pressure: 29.96 in Hourly Precipitation: - Heat Index: 81 °F Graphs

Location: Deval Estates, Mandeville, LA

Updated: 8:57 PM CDT

Temperature: 79.7 °F Dew Point: 77 °F Humidity: 91% Wind: Calm Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: 85 °F Graphs

Location: SHARP ROAD, Mandeville, LA

Updated: 8:57 PM CDT

Temperature: 78.1 °F Dew Point: 75 °F Humidity: 90% Wind: Calm Pressure: 30.11 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Mandeville, Mandeville, LA

Updated: 8:50 PM CDT

Temperature: 79.9 °F Dew Point: 75 °F Humidity: 84% Wind: Calm Pressure: 30.09 in Hourly Precipitation: - Heat Index: 85 °F Graphs

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

Updated: 5:44 PM CDT

Temperature: 86.2 °F Dew Point: 76 °F Humidity: 72% Wind: South at 6.9 mph Pressure: 30.07 in Hourly Precipitation: 0.00 in Heat Index: 96 °F Graphs

Location: Chateau Village Subdivision, Mandeville, LA

Updated: 8:57 PM CDT

Temperature: 79.7 °F Dew Point: 74 °F Humidity: 82% Wind: Calm Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 84 °F Graphs

Location: Estates of Northpark, Covington, LA

Updated: 8:56 PM CDT

Temperature: 78.8 °F Dew Point: 75 °F Humidity: 87% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

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

Updated: 7:47 PM CDT

Temperature: 79 °F Dew Point: 75 °F Humidity: 89% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Covington / Abita Springs, Covington, LA

Updated: 8:57 PM CDT

Temperature: 77.5 °F Dew Point: 74 °F Humidity: 89% Wind: Calm Pressure: 30.14 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: Oak Mill, Lacombe, LA

Updated: 8:57 PM CDT

Temperature: 77.7 °F Dew Point: 76 °F Humidity: 93% Wind: Calm Pressure: 30.09 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: Covington near Terra Bella Village, Covington, LA

Updated: 8:57 PM CDT

Temperature: 79.8 °F Dew Point: 74 °F Humidity: 84% Wind: Calm Pressure: 30.11 in Hourly Precipitation: 0.00 in Heat Index: 84 °F Graphs

Location: River Forest, Covington, LA

Updated: 9:47 PM EDT

Temperature: 79.3 °F Dew Point: 71 °F Humidity: 77% Wind: Calm Pressure: 29.99 in Hourly Precipitation: - Heat Index: 83 °F Graphs

Location: Port Louis, Madisonville, LA

Updated: 8:57 PM CDT

Temperature: 80.2 °F Dew Point: 72 °F Humidity: 77% Wind: NW at 3.0 mph Pressure: 30.12 in Hourly Precipitation: 0.00 in Heat Index: 84 °F Graphs

Location: River Forest, Covington, LA

Updated: 8:57 PM CDT

Temperature: 78.4 °F Dew Point: 74 °F Humidity: 86% Wind: Calm Pressure: 30.09 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: RAWS SELA PORTABLE LA US, Lacombe, LA

Updated: 8:34 PM CDT

Temperature: 79 °F Dew Point: 75 °F Humidity: 87% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Near Tchefuncte River Flood Gauge, Covington, LA

Updated: 8:43 PM CDT

Temperature: 77.7 °F Dew Point: 75 °F Humidity: 92% Wind: Calm Pressure: 29.78 in Hourly Precipitation: - Heat Index: 80 °F Graphs

Location: NorthPointe Business Park, Covington, LA

Updated: 8:52 PM CDT

Temperature: 78.5 °F Dew Point: 75 °F Humidity: 88% Wind: Calm Pressure: 30.09 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: Circle O Acres, Slidell, LA

Updated: 8:56 PM CDT

Temperature: 81.2 °F Dew Point: 71 °F Humidity: 72% Wind: Calm Pressure: 30.09 in Hourly Precipitation: 0.00 in Heat Index: 85 °F Graphs

Location: Bayou Liberty, Slidell, LA

Updated: 8:55 PM CDT

Temperature: 79.4 °F Dew Point: 74 °F Humidity: 84% Wind: Calm Pressure: 30.11 in Hourly Precipitation: - Heat Index: 83 °F Graphs

Location: Timber Ridge, Slidell, LA

Updated: 8:57 PM CDT

Temperature: 80.5 °F Dew Point: 73 °F Humidity: 79% Wind: Calm Pressure: 30.10 in Hourly Precipitation: 0.00 in Heat Index: 85 °F Graphs

Location: Hickory, Pearl River, LA

Updated: 8:56 PM CDT

Temperature: 81.2 °F Dew Point: 76 °F Humidity: 83% Wind: Calm Pressure: 30.07 in Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

Location: Slidell, LA

Updated: 8:54 PM CDT

Temperature: 81.7 °F Dew Point: 77 °F Humidity: 84% Wind: Calm Pressure: 30.09 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

Location: West Saint Tammany, Covington, LA

Updated: 8:57 PM CDT

Temperature: 76.5 °F Dew Point: 76 °F Humidity: 99% Wind: Calm Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: LAKEVIEW DR., Slidell, LA

Updated: 8:47 PM CDT

Temperature: 84.7 °F Dew Point: 77 °F Humidity: 78% Wind: West at 4.0 mph Pressure: 30.08 in Hourly Precipitation: 0.00 in Heat Index: 95 °F Graphs

Location: Pearl Hickory, Pearl River, LA

Updated: 8:43 PM CDT

Temperature: 79.3 °F Dew Point: 76 °F Humidity: 89% Wind: Calm Pressure: 29.82 in Hourly Precipitation: - Heat Index: 84 °F Graphs

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

Updated: 8:57 PM CDT

Temperature: 82.9 °F Dew Point: 76 °F Humidity: 80% Wind: Calm Pressure: 30.07 in Hourly Precipitation: 0.00 in Heat Index: 91 °F Graphs

Location: Dragonfly, Bush, LA

Updated: 8:56 PM CDT

Temperature: 78.9 °F Dew Point: 75 °F Humidity: 88% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Tammany Yacht Club, Slidell, LA

Updated: 6:57 PM MST

Temperature: 84.8 °F Dew Point: 77 °F Humidity: 77% Wind: West at 5.0 mph Pressure: 30.11 in Hourly Precipitation: 0.00 in Heat Index: 95 °F Graphs

Location: Oak Harbor, Slidell, LA

Updated: 8:57 PM CDT

Temperature: 84.7 °F Dew Point: 77 °F Humidity: 77% Wind: WSW at 1.0 mph Pressure: 30.09 in Hourly Precipitation: 0.00 in Heat Index: 95 °F Graphs

Location: Eden Isles, Slidell, LA

Updated: 9:57 PM EDT

Temperature: 85.0 °F Dew Point: 77 °F Humidity: 78% Wind: Calm Pressure: 30.09 in Hourly Precipitation: 0.00 in Heat Index: 96 °F Graphs

Location: Oak Harbor, K4QAL, Slidell, LA

Updated: 8:55 PM CDT

Temperature: 83.9 °F Dew Point: 76 °F Humidity: 76% Wind: Calm Pressure: 30.08 in Hourly Precipitation: 0.00 in Heat Index: 92 °F Graphs

Location: Huckleberry Lane, Folsom, LA

Updated: 8:43 PM CDT

Temperature: 77.6 °F Dew Point: 75 °F Humidity: 91% Wind: Calm Pressure: 30.09 in Hourly Precipitation: - Heat Index: 80 °F Graphs

Location: Bayou Canada West, Ponchatoula, LA

Updated: 8:50 PM CDT

Temperature: 74.8 °F Dew Point: 74 °F Humidity: 99% Wind: Calm Pressure: 30.15 in Hourly Precipitation: - Heat Index: 72 °F Graphs

Location: Bayou Canada North, Ponchatoula, LA

Updated: 8:57 PM CDT

Temperature: 74.1 °F Dew Point: 74 °F Humidity: 100% Wind: Calm Pressure: 30.14 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Bayou Canada South, Ponchatoula, LA

Updated: 8:57 PM CDT

Temperature: 74.7 °F Dew Point: 74 °F Humidity: 98% Wind: Calm Pressure: 30.12 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: West Lakeshore, New Orleans, LA

Updated: 8:57 PM CDT

Temperature: 80.7 °F Dew Point: 74 °F Humidity: 81% Wind: Calm Pressure: 30.11 in Hourly Precipitation: 0.00 in Heat Index: 86 °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 
329 PM CDT Thursday Aug 21 2014 


Short term... 


A strong 500 mb 595 ridge will remain parked over the Gulf south 
through Saturday. The ridge will weaken slightly on Sunday 
dropping down to around a 590 ridge...but will still be strong 
enough to keep convective chances down and temperatures up. 
Overall rain chances will be highest along the coast of Louisiana 
where seabreeze boundary interactions should be sufficient to 
overcome any capping aloft and allow for deeper convection to 
form. Overall...expect to see similar patterns of convective 
development as observed the last couple of days. The convection 
will tend to develop during the late afternoon and early evening 
hours when the temperature and overall convective instability is 
maximized. Away from the seabreeze induced convection...very 
little in the way of convection is expected due to the weak lapse 
rates aloft. If any convection forms in northern and eastern 
zones...it will be due to the convective temperature being 
reached and the weak cap aloft being broken. Have put in slight 
chance probability of precipitation for all of the area each afternoon. 


Temperatures will be a good 5 degrees above average through 
Sunday...with highs ranging from the middle to upper 90s. 
Dewpoints will generally range around 70 degrees through 
Saturday...keeping heat index readings between 100 and 105. 
However...as the ridge aloft weakens the atmosphere will begin to 
moisten a bit. With dewpoints rising to around 75 degrees for 
Sunday and Monday...heat index readings will climb closer to 110 
degrees. Overnight lows will also be higher...with lows struggling 
to drop below 80 degrees in metropolitan New Orleans Sunday night. These 
more oppressive conditions could prompt the issuance of heat 
advisories for Sunday and Monday. 


Long term... 


Rain chances on Monday will begin to increase late in the day...as 
the upper level ridge continues to weaken and the ridge axis 
shifts to the north and west of the Gulf Coast. A weak upper level 
vorticity maximum and associated forcing will slide toward the area during 
the day on Monday. A broad region of increased positive vorticity 
advection should provide enough Omega to produce scattered 
convection over the eastern half of the forecast area Monday 
afternoon. Have kept in chance probability of precipitation to reflect this risk. There 
will also be higher risk of strong winds with the deepest 
convection on Monday as dry air in the middle-levels becomes 
entrained into the storms. 


The main surge of moisture and Omega will overspread the area on 
Tuesday and linger into Wednesday. Have kept in chance probability of precipitation for 
the entire forecast area each day. Precipitable water values will rise to around 
2 inches which indicates that a very tropical airmass will be in 
place. Expect to see convection spread inland from the offshore 
waters by late morning and then turn more widespread during the 
afternoon hours. Storm motions will be relatively slow...so 
locally heavy rainfall of 2 to3 inches in an hour will be entirely 
possible with the deepest convection. With the greater cloud cover 
and rainfall in the area...temperatures will fall back to more 
normal levels for late August. Highs will climb into the lower 90s 
and overnight lows will generally be in the lower to middle 70s. 


&& 


Aviation... 


VFR conditions should prevail through the period. Isolated showers 
and thunderstorms will persist through this afternoon. Have included 
vicinity and tempo groups at terminals where thunderstorms are most 
likely. Outside of any convective influences...expect light winds 
and cloud bases around 4kft during the day...with light or calm 
winds and only high clouds overnight. 


&& 


Marine... 


A ridge centered over the area...mesoscale interactions will drive 
the wind in the coastal waters. A seabreeze/landbreeze cycle will 
dominate...with offshore winds in place during the morning hours 
and onshore winds developing during the afternoon hours. Winds 
will generally be 10 knots or less through the weekend...and seas 
will generally be 2 feet or less. The winds will take on a more 
persistent easterly flow early next week as the surface high 
becomes centered north of the region. East winds of 10 to 15 knots 
and seas of 2 to 3 feet can be expected Monday and 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 74 95 74 97 / 10 20 20 20 
btr 76 96 75 97 / 10 20 20 20 
asd 76 94 76 96 / 10 20 20 20 
msy 77 93 78 95 / 10 20 20 20 
gpt 77 95 77 97 / 10 20 20 20 
pql 75 96 75 96 / 10 20 20 20 


&& 


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


$$ 


32 










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