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Harlem, Louisiana Weather Forecast
Harlem, Louisiana Weather
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Weather Forecast for Harlem, Louisiana : Plaquemines County
Issued: 11:30 pm CST Dec 22, 2025 Latitude: 29.6229913 Longitude: -89.9006241 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Wednesday Christmas Day Friday Saturday Sunday Monday
Mostly Sunny on Today Morning Fog on Tonight Morning Fog on Wednesday Partly Sunny on Christmas Day Mostly Sunny on Friday Sunny on Saturday 10% chance of rain on Sunday Sunny on Monday
High: 73°F Low: 58°F High: 70°F High: 70°F High: 74°F High: 73°F High: 73°F High: 57°F
Low: 55°F Low: 57°F Low: 59°F Low: 58°F Low: 44°F  
Mostly Sunny Morning Fog Morning Fog Partly Sunny Mostly Sunny Sunny Rain Sunny
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Current Conditions at
NEW ORLEANS NAS - (KNBG)
54°
Clear
as of 3:04 AM CST
Rel. Humidity: 100%
Dew Point: 54°F
Visibility: 1/2 Miles
Pressure: 30.26 in.
Flight Rule: IFR
Wind Data
3 MPH
050° Northeast
Current Conditions at
LAKEFRONT ARPT - (KNEW)
59°
Mostly Clear
Mist
as of 3:29 AM CST
Rel. Humidity: 100%
Dew Point: 59°F
Visibility: 5 Miles
Pressure: 30.28 in.
Flight Rule: MVFR
Wind Data
9 MPH
050° Northeast
Cloud Level(s): Few at 1300ft
Current Conditions at
NEW ORLEANS INTL - (KMSY)
61°
Clear
Fog
as of 3:34 AM CST
Rel. Humidity: 93%
Dew Point: 59°F
Visibility: 1/4 Miles
Pressure: 30.27 in.
Flight Rule: IFR
Wind Data
6 MPH
020° North
Mostly Sunny on Today Today... Mostly sunny, with a high near 73. East wind around 5 mph.

Morning Fog on Tonight Tonight... Widespread dense fog, mainly between 11pm and 4am. Otherwise, mostly cloudy, with a low around 58. Calm wind.

Morning Fog on Wednesday Wednesday... Areas of fog before 7am. Otherwise, mostly sunny, with a high near 70. Calm wind becoming east around 5 mph.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 55. Calm wind.

Partly Sunny on Christmas Day Christmas Day... Partly sunny, with a high near 70. Calm wind becoming southeast around 5 mph.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 57. Calm wind.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 74. Light south wind becoming southwest 5 to 10 mph in the morning.

Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 59. Southwest wind around 5 mph becoming calm in the evening.

Sunny on Saturday Saturday... Sunny, with a high near 73. Light southwest wind becoming south 5 to 10 mph in the morning.

Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 58. South wind around 5 mph becoming calm in the evening.

10% chance of rain Sunday Sunday... A slight chance of showers. Mostly sunny, with a high near 73. Calm wind becoming west around 5 mph in the morning.

10% chance of rain Sunday Night Sunday Night... A slight chance of showers. Mostly cloudy, with a low around 44. North wind 5 to 10 mph, with gusts as high as 25 mph.

Sunny on Monday Monday... Sunny, with a high near 57. North wind 10 to 15 mph.

Sun Almanac for Harlem, Louisiana
Sunrise: 06:52 AM
Sunset: 5:06 PM
Civil Sunrise:06:25 AM
Civil Sunset: 5:32 PM
Nautical Sunrise: 05:56 AM
Nautical Sunset: 6:02 PM
Astro Sunrise: 05:26 AM
Astro Sunset: 6:31 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.