Gretna, Louisiana 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Clear 78°F 26°C Heat Index: 78°F	Observed at: Gretna, LA	Elevation: 3 ft | 1 m
	Last Updated: July 29, 5:30 AM Timezone: GMT -5/-4
	Sky Conditions: Clear	Temperature: 78°F | 26°C
	Pressure: 29.88 in | 1011.8 mb	Dewpoint: 75°F | 24°C
	Humidity: 89%	Wind: WNW 5 mph | WNW 8 kph
	Feels Like: 87°F | 31°C	Visibility: 29.4 mi | 47.2 km
	Lat/Long: 29.91 | -90.05	Sunrise: 6:17 AM   Sunset: 7:55 PM

7 Day Graphical Forecast

Valid: 5:30 AM 7/29/2026

Tonight Overcast 78 °F 8% Chance Precipitation Thursday Overcast 97 |78 °F 26% Chance Precipitation Friday Light Drizzle 98 |81 °F 52% Chance Precipitation Saturday Thunderstorm with Hail 96 |77 °F 40% Chance Precipitation Sunday Thunderstorm with Hail 95 |78 °F 52% Chance Precipitation Monday Overcast 94 |77 °F 43% Chance Precipitation Tuesday Drizzle 94 |80 °F 33% Chance Precipitation

7 Hour Graphical Forecast

Valid: 5:30 AM 7/29/2026

5 AM Clear 79 °F 1% Chance Precipitation

6 AM Clear 78 °F 1% Chance Precipitation

7 AM Clear 79 °F 0% Chance Precipitation

8 AM Clear 81 °F 1% Chance Precipitation

9 AM Clear 84 °F 1% Chance Precipitation

10 AM Clear 86 °F 1% Chance Precipitation

11 AM Clear 89 °F 2% Chance Precipitation

7 Day Textual Forecast - with QPF, Max Wind, Humidity, Snowfall & UV Index

7 Day & Night Weather Forecast for Gretna, LA - (Fahrenheit & Celsius) Valid: 5:30 AM 7/29/2026 Tonight Overcast with a low around 78°F [26°C]. W wind to around 11 mph [18 kph], with gusts to near 23 mph [37 kph]. Chance of precipitation 8% with QPF of 0.00 in [0.0 mm]. Thursday Overcast with a high near 97°F [36°C]. WSW wind to around 12 mph [20 kph], with gusts to near 22 mph [35 kph]. Dewpoint near 75°F [24°C] with humidity of 91%. Pressure around 29.88 in [1011.8 mb]. UV Index: 8.55. Chance of precipitation 26% with QPF of 0.00 in [0.0 mm]. Thursday Night Overcast with a low around 78°F [26°C]. WSW wind to around 12 mph [20 kph], with gusts to near 22 mph [35 kph]. Chance of precipitation 26% with QPF of 0.00 in [0.0 mm]. Friday Light Drizzle with a high near 98°F [37°C]. W wind to around 12 mph [20 kph], with gusts to near 21 mph [33 kph]. Dewpoint near 75°F [24°C] with humidity of 76%. Pressure around 29.88 in [1011.8 mb]. UV Index: 8.35. Chance of precipitation 52% with QPF of 0.00 in [0.1 mm]. Friday Night Light Drizzle with a low around 81°F [27°C]. W wind to around 12 mph [20 kph], with gusts to near 21 mph [33 kph]. Chance of precipitation 52% with QPF of 0.00 in [0.1 mm]. Saturday Thunderstorm with Hail with a high near 96°F [35°C]. WSW wind to around 16 mph [26 kph], with gusts to near 25 mph [40 kph]. Dewpoint near 75°F [24°C] with humidity of 93%. Pressure around 29.88 in [1011.8 mb]. UV Index: 7.3. Chance of precipitation 40% with QPF of 1.05 in [26.6 mm]. Saturday Night Thunderstorm with Hail with a low around 77°F [25°C]. WSW wind to around 16 mph [26 kph], with gusts to near 25 mph [40 kph]. Chance of precipitation 40% with QPF of 1.05 in [26.6 mm]. Sunday Thunderstorm with Hail with a high near 95°F [35°C]. WSW wind to around 14 mph [23 kph], with gusts to near 28 mph [45 kph]. Dewpoint near 75°F [24°C] with humidity of 93%. Pressure around 29.88 in [1011.8 mb]. UV Index: 8.45. Chance of precipitation 52% with QPF of 0.43 in [10.8 mm]. Sunday Night Thunderstorm with Hail with a low around 78°F [26°C]. WSW wind to around 14 mph [23 kph], with gusts to near 28 mph [45 kph]. Chance of precipitation 52% with QPF of 0.43 in [10.8 mm]. Monday Overcast with a high near 94°F [34°C]. W wind to around 11 mph [18 kph], with gusts to near 16 mph [26 kph]. Dewpoint near 75°F [24°C] with humidity of 88%. Pressure around 29.88 in [1011.8 mb]. UV Index: 8.25. Chance of precipitation 43% with QPF of 0.00 in [0.0 mm]. Monday Night Overcast with a low around 77°F [25°C]. W wind to around 11 mph [18 kph], with gusts to near 16 mph [26 kph]. Chance of precipitation 43% with QPF of 0.00 in [0.0 mm]. Tuesday Drizzle with a high near 94°F [34°C]. SW wind to around 8 mph [12 kph], with gusts to near 12 mph [19 kph]. Dewpoint near 75°F [24°C] with humidity of 79%. Pressure around 29.88 in [1011.8 mb]. UV Index: 8.1. Chance of precipitation 33% with QPF of 0.09 in [2.4 mm]. Tuesday Night Drizzle with a low around 80°F [26°C]. SW wind to around 8 mph [12 kph], with gusts to near 12 mph [19 kph]. Chance of precipitation 33% with QPF of 0.09 in [2.4 mm].

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7 Day and Night - QPF Forecast for Gretna, LA

Tonight: 0.0 mm | 0.00 in

Thursday: 0.0 mm | 0.00 in

Thursday Night: 0.0 mm | 0.00 in

Friday: 0.1 mm | 0.00 in

Friday Night: 0.1 mm | 0.00 in

Saturday: 26.6 mm | 1.05 in

Saturday Night: 26.6 mm | 1.05 in

Sunday: 10.8 mm | 0.43 in

Sunday Night: 10.8 mm | 0.43 in

Monday: 0.0 mm | 0.00 in

Monday Night: 0.0 mm | 0.00 in

Tuesday: 2.4 mm | 0.09 in

Tuesday Night: 2.4 mm | 0.09 in

7 Day and Night - Maximum Wind Speed Forecast for Gretna, LA

Tonight: W @ 18 kph | 11 mph

Thursday: WSW @ 20 kph | 12 mph

Thursday Night: WSW @ 20 kph | 12 mph

Friday: W @ 20 kph | 12 mph

Friday Night: W @ 20 kph | 12 mph

Saturday: WSW @ 26 kph | 16 mph

Saturday Night: WSW @ 26 kph | 16 mph

Sunday: WSW @ 23 kph | 14 mph

Sunday Night: WSW @ 23 kph | 14 mph

Monday: W @ 18 kph | 11 mph

Monday Night: W @ 18 kph | 11 mph

Tuesday: SW @ 12 kph | 8 mph

Tuesday Night: SW @ 12 kph | 8 mph

7 Day and Night - Maximum Humidity Forecast for Gretna, LA

Tonight: 90 %

Thursday: 91 %

Thursday Night: 91 %

Friday: 76 %

Friday Night: 76 %

Saturday: 93 %

Saturday Night: 93 %

Sunday: 93 %

Sunday Night: 93 %

Monday: 88 %

Monday Night: 88 %

Tuesday: 79 %

Tuesday Night: 79 %

7 Day and Night - Snowfall Totals Forecast for Gretna, LA

Tonight: 0.0 cm | 0.00 in

Thursday: 0.0 cm | 0.00 in

Thursday Night: 0.0 cm | 0.00 in

Friday: 0.0 cm | 0.00 in

Friday Night: 0.0 cm | 0.00 in

Saturday: 0.0 cm | 0.00 in

Saturday Night: 0.0 cm | 0.00 in

Sunday: 0.0 cm | 0.00 in

Sunday Night: 0.0 cm | 0.00 in

Monday: 0.0 cm | 0.00 in

Monday Night: 0.0 cm | 0.00 in

Tuesday: 0.0 cm | 0.00 in

Tuesday Night: 0.0 cm | 0.00 in

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