Slidell, Louisiana Weather Conditions

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Current Conditions

  • 86°
  • Clear
  • Wind: North 8 mph
  • Humidity: 41%
  • Visibility: 10.0 miles
  • Dew Point: 60°
  • Pressure: 30.00 in. -
  • Heat Index: 86

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Next 12 Hours

4  pm
7  pm
10  pm
1  am
4  am
Clear
Clear
Partly Cloudy
Partly Cloudy
Clear
Clear
Clear
Clear
Clear
Clear
86°
84°
75°
75°
73°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Wednesday
  • Clear
  • High: 88 °
  • Low: 68 °
  • Clear
  • Thursday
  • Chance of a Thunderstorm
  • High: 90 °
  • Low: 70 °
  • Chance of a Thunderstorm
  • Friday
  • Chance of a Thunderstorm
  • High: 88 °
  • Low: 72 °
  • Chance of T-Storms
  • Saturday
  • Partly Cloudy
  • High: 90 °
  • Low: 73 °
  • Partly Cloudy
  • Sunday
  • Partly Cloudy
  • High: 86 °
  • Low: 72 °
  • Partly Cloudy

Forecast for Slidell, Louisiana

Updated: 4:00 PM CDT on July 30, 2014

  • Wednesday

    Clear in the morning, then partly cloudy. High of 88F. Winds less than 5 mph.

  • Wednesday Night

    Partly cloudy in the evening, then clear. Low of 68F. Winds less than 5 mph.

  • Thursday

    Partly cloudy with a chance of a thunderstorm and a chance of rain in the afternoon. High of 90F. Winds less than 5 mph. Chance of rain 20%.

  • Thursday Night

    Partly cloudy with a chance of a thunderstorm and a chance of rain. Low of 70F. Winds less than 5 mph. Chance of rain 30%.

  • Friday

    Mostly cloudy with a chance of a thunderstorm and a chance of rain. High of 88F. Winds less than 5 mph. Chance of rain 40%.

  • Friday Night

    Partly cloudy with a chance of a thunderstorm and a chance of rain. Low of 72F. Winds from the SSW at 5 to 10 mph.

  • Saturday

    Partly cloudy. High of 90F. Winds from the NNE at 5 to 10 mph shifting to the SSE in the afternoon.

  • Saturday Night

    Partly cloudy with a chance of a thunderstorm and rain after midnight. Low of 73F. Winds from the SSW at 5 to 10 mph. Chance of rain 40%.

  • Sunday

    Partly cloudy in the morning, then overcast. Fog early. High of 86F. Winds less than 5 mph.

  • Sunday Night

    Partly cloudy with a chance of a thunderstorm. Low of 72F. Winds from the ESE at 5 to 10 mph. Chance of rain 20%.

  • Monday

    Partly cloudy with a chance of a thunderstorm. High of 88F. Winds from the SE at 5 to 10 mph. Chance of rain 20%.

  • Monday Night

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

  • Tuesday

    Partly cloudy with a chance of a thunderstorm. High of 88F. Winds from the NE at 5 to 10 mph shifting to the SSE in the afternoon. Chance of rain 20%.

  • Tuesday Night

    Clear with a chance of a thunderstorm. Low of 72F. Winds from the SW at 5 to 10 mph. Chance of rain 40%.

  • Wednesday

    Clear with a chance of a thunderstorm. High of 88F. Winds less than 5 mph. Chance of rain 50%.

  • Wednesday Night

    Partly cloudy with a chance of a thunderstorm. Fog overnight. Low of 73F. Winds from the WSW at 5 to 10 mph. Chance of rain 40% with rainfall amounts near 0.2 in. possible.

  • Thursday

    Clear with a chance of a thunderstorm. High of 88F. Winds from the WSW at 5 to 10 mph. Chance of rain 40%.

  • Thursday Night

    Clear with a chance of a thunderstorm. Low of 72F. Winds from the SW at 5 to 10 mph. Chance of rain 40%.

  • Friday

    Clear with a chance of a thunderstorm. High of 88F. Winds from the SW at 5 to 10 mph. Chance of rain 40%.

  • Friday Night

    Clear with a chance of a thunderstorm. Fog overnight. Low of 72F. Winds from the SW at 5 to 10 mph. Chance of rain 40%.

  • Saturday

    Partly cloudy with a chance of a thunderstorm. High of 86F. Winds less than 5 mph. Chance of rain 40%.

  • Saturday Night

    Partly cloudy with a chance of a thunderstorm. Low of 73F. Winds less than 5 mph. Chance of rain 50% with rainfall amounts near 0.4 in. possible.

  • Sunday

    Clear with a chance of a thunderstorm. High of 88F. Winds less than 5 mph. Chance of rain 30%.

  • Sunday Night

    Clear. Low of 73F. Winds from the SW at 5 to 10 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

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

Updated: 4:14 PM CDT

Temperature: 85.6 °F Dew Point: 66 °F Humidity: 53% Wind: North at 1.0 mph Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

Location: Slidell, LA

Updated: 4:14 PM CDT

Temperature: 86.8 °F Dew Point: 65 °F Humidity: 48% Wind: West at 6.0 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

Location: Oak Harbor, K4QAL, Slidell, LA

Updated: 4:10 PM CDT

Temperature: 83.6 °F Dew Point: 65 °F Humidity: 53% Wind: WNW at 8.0 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 85 °F Graphs

Location: Oak Harbor, Slidell, LA

Updated: 4:14 PM CDT

Temperature: 84.5 °F Dew Point: 67 °F Humidity: 55% Wind: SW at 5.0 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 87 °F Graphs

Location: Eden Isles, Slidell, LA

Updated: 5:14 PM EDT

Temperature: 84.2 °F Dew Point: 66 °F Humidity: 55% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 87 °F Graphs

Location: Timber Ridge, Slidell, LA

Updated: 4:14 PM CDT

Temperature: 87.7 °F Dew Point: 63 °F Humidity: 44% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

Location: Bayou Liberty, Slidell, LA

Updated: 4:06 PM CDT

Temperature: 91.0 °F Dew Point: 67 °F Humidity: 45% Wind: Calm Pressure: 30.00 in Hourly Precipitation: - Heat Index: 94 °F Graphs

Location: Tammany Yacht Club, Slidell, LA

Updated: 2:14 PM MST

Temperature: 82.1 °F Dew Point: 67 °F Humidity: 61% Wind: SW at 9.0 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 85 °F Graphs

Location: Circle O Acres, Slidell, LA

Updated: 4:14 PM CDT

Temperature: 89.9 °F Dew Point: 62 °F Humidity: 39% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 90 °F Graphs

Location: LAKEVIEW DR., Slidell, LA

Updated: 4:00 PM CDT

Temperature: 82.1 °F Dew Point: 67 °F Humidity: 60% Wind: WSW at 5.0 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 85 °F Graphs

Location: RAWS SELA PORTABLE LA US, Lacombe, LA

Updated: 3:34 PM CDT

Temperature: 88 °F Dew Point: 61 °F Humidity: 41% Wind: NNW at 3 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

Location: Pearl Hickory, Pearl River, LA

Updated: 4:09 PM CDT

Temperature: 87.1 °F Dew Point: 67 °F Humidity: 51% Wind: WNW at 2.2 mph Pressure: 29.74 in Hourly Precipitation: - Heat Index: 90 °F Graphs

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

Updated: 3:47 PM CDT

Temperature: 88 °F Dew Point: 59 °F Humidity: 38% Wind: WNW at 4 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 87 °F Graphs

Location: Hickory, Pearl River, LA

Updated: 4:12 PM CDT

Temperature: 90.0 °F Dew Point: 71 °F Humidity: 54% Wind: Calm Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 96 °F Graphs

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

Updated: 3:59 PM CDT

Temperature: 89.2 °F Dew Point: 64 °F Humidity: 44% Wind: East at 4.5 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 91 °F Graphs

Location: The Timbers, Mandeville, LA

Updated: 4:10 PM CDT

Temperature: 88.0 °F Dew Point: 61 °F Humidity: 40% Wind: NE at 1.7 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

Location: Soult Street/Molitor Street, Mandeville, LA

Updated: 4:14 PM CDT

Temperature: 86.2 °F Dew Point: 60 °F Humidity: 42% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

Location: Woodlands, Mandeville, LA

Updated: 4:14 PM CDT

Temperature: 84.4 °F Dew Point: 64 °F Humidity: 50% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

Location: Mandeville, Mandeville, LA

Updated: 4:09 PM CDT

Temperature: 87.0 °F Dew Point: 64 °F Humidity: 46% Wind: NNE at 3.0 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

Location: Deval Estates, Mandeville, LA

Updated: 4:14 PM CDT

Temperature: 88.5 °F Dew Point: 63 °F Humidity: 43% Wind: Calm Pressure: 29.84 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

Location: Old Mandeville, Mandeville, LA

Updated: 4:09 PM CDT

Temperature: 89.8 °F Dew Point: 65 °F Humidity: 44% Wind: NNW at 6.3 mph Pressure: 29.87 in Hourly Precipitation: - Heat Index: 92 °F Graphs

Location: SHARP ROAD, Mandeville, LA

Updated: 4:14 PM CDT

Temperature: 85.3 °F Dew Point: 66 °F Humidity: 52% Wind: NE at 2.9 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 87 °F Graphs

Location: Mandeville, Mandeville, LA

Updated: 4:04 PM CDT

Temperature: 85.1 °F Dew Point: 64 °F Humidity: 50% Wind: ENE at 4.0 mph Pressure: 29.99 in Hourly Precipitation: - Heat Index: 87 °F Graphs

Location: Pittari Lane, Carriere, MS

Updated: 4:08 PM CDT

Temperature: 86.0 °F Dew Point: 61 °F Humidity: 43% Wind: NNE at 6.8 mph Pressure: 29.70 in Hourly Precipitation: - Heat Index: 86 °F Graphs

Location: Chateau Village Subdivision, Mandeville, LA

Updated: 4:14 PM CDT

Temperature: 90.3 °F Dew Point: 61 °F Humidity: 37% Wind: Calm Pressure: 29.84 in Hourly Precipitation: 0.00 in Heat Index: 90 °F Graphs

Location: Shoreline Park, Bay St. Louis, MS

Updated: 4:14 PM CDT

Temperature: 90.0 °F Dew Point: - Humidity: - Wind: NW at 2.0 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Joe's Redneck Weather, Waveland, MS

Updated: 4:14 PM CDT

Temperature: 90.0 °F Dew Point: 55 °F Humidity: 31% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

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

Updated: 4:14 PM CDT

Temperature: 87.3 °F Dew Point: 64 °F Humidity: 46% Wind: East at 2.2 mph Pressure: 29.92 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 
334 PM CDT Wednesday Jul 30 2014 


Short term... 


The dry and stable airmass that has dominated the region today 
will unfortunately begin to move out of the area late tonight into 
early tomorrow. At the same time...a fairly strong upper level 
vorticity maximum and associated frontal boundary will approach the region 
from the northwest. Ample moisture as indicated by radar and 
satellite returns over the Southern Plains will advect into the 
region. Moisture will increase aloft initially and then work down 
to the surface through the day tomorrow. 


Expect to see increasing cloud cover through the day and the 
Prospect of some scattered convection developing during the 
afternoon hours over far northwest zones. More isolated convection 
will develop by late afternoon over the southern half of the 
forecast area. The vorticity lobe descending down the backside of a 
strong longwave trough dominating the eastern third of the nation 
will move into the lower Mississippi Valley on Friday. Ample 
forcing combined with deep moisture will allow for scattered 
convection to develop across the forecast area. Precipitable water values will be 
around 2 inches...so any rainfall could be potentially heavy due 
to the slow storm motions of around 5 knots expected. The airmass 
will change little going into Saturday...and expect another round 
of convection to develop in the vicinity of the front. 
However...expect less overall coverage as precipitable water values are slightly 
lower and the vorticity lobe aloft lifts to the north and east of the 
region. Have lowered probability of precipitation about 10 percent from the previous 
forecast. With increased cloud cover and precipitation in the 
area...expect temperatures to remain around 5 degrees below 
average. 


Long term... 


Conditions will be little changed from Sunday through 
Tuesday...as a slowly dissipating frontal boundary over the region 
interacts with a persistent upper level trough and continued 
higher than average upper level lift. Ample moisture will still be 
in place...with model soundings showing precipitable water values still around 2 
inches and a moist adiabatic profile in place. With slow storm 
motions of 5 knots or less and deep tropical moisture over the 
area...any convection will have the potential to drop heavy 
rainfall over isolated areas. This could continue to keep a 
localized street flooding threat in place over the area. Once 
again...the convective threat will be greatest during the 
afternoon hours when overall instability is highest. Temperatures 
will remain around 5 degrees below average through Tuesday due to 
the continued rainfall and cloud cover. 


The trough over the eastern third of the country will begin to 
break down a bit and the subtropical ridge will extend westward 
from the eastern Gulf of Mexico on Wednesday. With less Omega in 
place and slightly lower precipitable water values closer to 1.8 
inches...convective coverage should decrease a bit. Have put in 
chance probability of precipitation...but the pop is closer to 40 percent as opposed to 50 
percent for Wednesday. Temperatures should also increase back to 
more normal levels by the middle of next week. 


&& 


Aviation... 


Dry air across the area will keep VFR conditions in effect at all 
terminals through 18z Thursday. The atmosphere will moisten up from 
the top down and from northwest to southeast Thursday 
afternoon...possibly bringing some isolated to scattered shra/tsra. 
Confidence and location is too low for any mention today...but this 
will have to be considered with later taf issuances. 22/dew point 


&& 


Marine... 


No significant marine impacts are expected through the forecast 
period. Winds will generally be 10 knots or less and will be 
variable as a frontal boundary stalls along the coast. Seas will 
generally be 1 foot or less through the weekend. The biggest 
boating impacts will be associated with convection. Thunderstorms 
will bring a gusty wind and lightning hazard to the coastal waters 
each day. 32 


&& 


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 64 87 69 87 / 10 30 30 50 
btr 65 89 72 89 / 10 30 30 50 
asd 64 88 69 88 / 10 20 20 40 
msy 72 88 74 87 / 10 20 20 40 
gpt 66 90 68 90 / 10 20 20 40 
pql 62 88 67 88 / 10 20 20 40 


&& 


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


$$ 


32 










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