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Slidell, LA 70459 Weather
Current conditions
Observed at Slidell, Slidell Airport · 16 min ago
Forecast
10-day-
Tonight
Clear, with a low around 54. Northeast wind around 0 mph.
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Wednesday
Sunny. High near 81, with temperatures falling to around 78 in the afternoon. Northeast wind 0 to 5 mph.
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Wednesday Night
Mostly clear, with a low around 54. Northeast wind around 0 mph.
National Weather Service forecast updated 5 hrs ago.
Hourly
Hourly forecast- Now59°
- Wed12 AM58°
- 1 AM58°
- 2 AM57°
- 3 AM56°
- 4 AM55°
- 5 AM55°
- 6 AM54°
- 7 AM54°
- 8 AM56°
- 9 AM61°
- 10 AM68°
- 11 AM72°
- 12 PM75°
- 1 PM78°
- 2 PM79°
- 3 PM80°
- 4 PM80°
- 5 PM78°
- 6 PM73°
- 7 PM68°
- 8 PM64°
- 9 PM62°
- 10 PM61°
10-day forecast
Details- TonightOct 20Clear54°
- WedOct 21Sunny54°81°
- ThuOct 22Sunny57°83°
- FriOct 23Sunny50°83°
- SatOct 24Sunny50°80°
- SunOct 25Sunny50°79°
- MonOct 26Mostly Sunny51°81°
- TueOct 27Sunny82°
- WedOct 28Partly cloudy57°82°
- ThuOct 29Cloudy57°77°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news in Louisiana
More weather news-
Sunny and mild days continue in southeast LouisianaSunny and mild days will continue in southeast Louisiana WDSU Sunny and mild days continue in southeast Louisiana Conditions will stay dry with near average temperatures over the next several days Skies will remain…
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NOAA winter weather forecast calls for drought relief throughout LouisianaNOAA’s winter outlook calls for wetter-than-normal conditions in Louisiana. LSU Health climatologist Barry Keim says that’s typical during El Niño winters. Keim says a strong El Niño strengthens the southerly jet…
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Southeast Louisiana weather: Sunny days, chilly nights and a gradual warmupNorthshore temperatures dip near 50 tonight as dry weather holds across southeast Louisiana. Sunshine and low humidity stick around southeast Louisiana and Mississippi today. Afternoon highs will reach 78 to 83 degrees…
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First Alert Forecast: Comfortable Warmth Continues Across Southwest LouisianaLAKE CHARLES, La. (KPLC) -After a beautiful fall weekend with morning lows in the 40s and 50s and afternoon highs in the 70s, Southwest Louisiana is warming up slightly — but no major heat is in sight. Monday was a…
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Warming up while staying sunny and dry in LouisianaPleasant weather conditions will continue over the next several days Clouds and sunshine will continue throughout the day with high temperatures in the mid to upper 70s during the afternoon. Mostly sunny skies will…
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Dry, sunny stretch locked in across Southeast LouisianaNEW ORLEANS (WVUE) - Dry air and sunshine are locked in for the New Orleans area this afternoon. A light breeze will keep conditions comfortable across the metro, and no rain is on the way. Highs will warm back into the…
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Winds hold tight for Saturday’s last day of “Louisiana Severe Weather Awareness Week”NEW ORLEANS (WGNO) – As the Louisiana Severe Weather Awareness Week wraps up, southeast Louisiana along with southern Mississippi continue to feel the “windy situation” and cooler temperatures through Saturday evening…
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Chilly mornings return to Southeast Louisiana and Coastal Mississippi's weather forecastThanks to Friday's cold front, cooler air continues to move into the Deep South, including Southeast Louisiana and Coastal Mississippi. Temperatures across the Northshore Sunday morning will fall to the upper 40s and…
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What an El Niño winter is likely to look like for LouisianaNEW ORLEANS (WVUE) - El Niño is setting the stage for a winter that will look very different depending on where you live across the United States. The National Oceanic and Atmospheric Administration’s winter outlook…
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Red Flag Warning issued for parts of southeast Louisiana, southern Mississippi ahead of dry conditionsThe National Weather Service has issued a Red Flag Warning for parts of southeast Louisiana and all of southern Mississippi on Friday. The warning is in effect from 9 a.m. until 8 p.m. on Saturday as forecasters say a…
Air quality
Air quality is satisfactory, and air pollution poses little or no risk.
Forecast
- TueGood (44)
- WedModerate (53)
- ThuModerate (56)
New Orleans, LA reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlySlidell, records since 1956. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
Forecasters' discussion
From the National Weather Service office in LIX, issued 5 hrs ago
Key Messages
Updated at 622 PM CDT Tue Oct 20 2026
- Conditions will remain somewhat favorable for the development of fires through the remainder of this week and into the weekend due to low humidity and drought/abnormally dry conditions across most of the area.
Short Term
(Now through Friday night) Issued at 135 PM CDT Tue Oct 20 2026
Overall, the pattern through the week will not change much. Initially, we remain in dry northwesterly flow aloft, which taking a look outside the clear skies represents this pattern beautifully. There is a ridge starting to nudge eastward from northern portions of Mexico to south Texas. As this feature moves closer, daytime highs will gradually increase through late week with this upper high moving closer. With surface high pressure also trying to build into the region, surface winds will remain light, which is great news from a fire weather perspective. RH values are near critical values especially southwest Mississippi and northern Florida Parishes. However, lackluster winds are keeping us from needed RFWs. That said, through the week there will still be a few fires likely breakout during the afternoon, but again with lackluster winds controlling them should be a bit easier with only limited spread. (Frye)
Long Term
(Saturday through Monday night) Issued at 135 PM CDT Tue Oct 20 2026
The long term starts with the region still under dry northerly flow aloft on the eastern periphery of an elongated upper ridge over the ArkLaTex/Red River Valley. This will promote the ongoing pattern from the short term period...dry conditions. Even drier during the afternoon due to stronger surface heating and mixing. And also continued mostly above average temperatures given the proximity of the highest heights. By this point, low level flow looks to start increasing out of the east as pressure gradient across much of the region begins to tighten with a surface low developing off the southeast Florida Coast. This will need to be watched going into the long term as dry conditions (RH and antecedent conditions) could lead to enhanced fire danger where the winds are the strongest. The synoptic pattern begins to change at the ridge breaks down as an upper level trough begins to dig over the central plains right at the period ends early Tuesday morning. (Frye)
Aviation
(00Z TAFS) Issued at 622 PM CDT Tue Oct 20 2026
VFR conditions expected through the forecast period. At most locations, winds will be near or below 10 knots.
Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.