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Gretna, LA Weather Tomorrow

Tomorrow's forecast for Gretna includes an extended 5 day weather outlook with precipitation potential, daytime and nighttime forecasts, temperature highs and lows in Fahrenheit and Celsius, sunrise and sunset times, cloud cover, wind chill, wind speed, and wind direction for the Gretna area and around Jefferson county, Louisiana.
Updated: Thu Oct 8th 2026 3:00 AM CDT
Gretna, LA Weather – 10-8 – Overcast
84° / 73°
Overcast
Gretna may see overcast, with daytime highs of 84°F and overnight lows near 73°F. There might be light rainfall having a 18% chance with an estimated 0in. Wind will be moderate, blowing around 15mph on average and gusts of 24.6mph at 6 PM. The humidity will be on the higher side, averaging about 70%, the maximum being 82% at 7 AM and 51% being its lowest at 2 PM. Barometric pressure is its highest of 29.94inHg at 9 AM, a lowest point of 29.86inHg at 4 PM with an avg 29.9inHg.
Gretna, LA Weather – 10-9 – Scattered Showers
80° / 70°

Weather Tomorrow

Scattered Showers
Highs will reach 80°F with lows near 70°F in Gretna, where scattered showers are. The chance of rain is 77% with an estimated 0.13in. Winds will be strong at speeds peaking at 25mph and gusts of 41.9mph at 8 PM. The humidity will be on the higher side, averaging about 76%, the maximum being 84% at 9 PM and 65% being its lowest at 2 PM. Barometric pressure is its highest of 29.93inHg at 11 AM, a lowest point of 29.75inHg at 11 PM with an avg 29.86inHg.
Gretna, LA Weather – 10-10 – Scattered Showers
71° / 67°
Scattered Showers
Gretna is set for scattered showers with temperatures peaking at 71°F and dipping to 67°F. The chance of rain is 86% with an estimated 0.34in. Wind will be moderate, blowing around 20mph on average and gusts of 37.4mph at 12 AM. High humidity with average of 86% is anticipated, the maximum being 90% at 4 AM and 82% being its lowest at 12 AM. Barometric pressure is its highest of 29.98inHg at 11 PM, a lowest point of 29.72inHg at 2 AM with an avg 29.85inHg.
Gretna, LA Weather – 10-11 – Sunny
83° / 66°
Sunny
Daytime highs will reach 83°F with lows dropping to 66°F in Gretna, where bright and sunny conditions. There's a very small chance of rainfall, only about 4%. Winds will be light at 7mph and gusts of 7.9mph at 9 AM. The humidity will be on the higher side, averaging about 64%, the maximum being 86% at 12 AM and 41% being its lowest at 4 PM. Barometric pressure is its highest of 30.12inHg at 11 AM, a lowest point of 29.98inHg at 1 AM with an avg 30.05inHg.
Gretna, LA Weather – 10-12 – Sunny
87° / 69°
Sunny
In Gretna, a sunny day is likely with a high near 87°F and a low around 69°F. There's a very small chance of rainfall, only about 3%. Winds will be light at 10mph and gusts of 20.8mph at 4 PM. The humidity will be on the higher side, averaging about 62%, the maximum being 76% at 7 AM and 40% being its lowest at 2 PM. Barometric pressure is its highest of 30.12inHg at 10 AM, a lowest point of 30inHg at 5 PM with an avg 30.06inHg.
Gretna, LA Weather – 10-13 – Sunny
88° / 72°
Sunny
Highs will reach 88°F with lows near 72°F in Gretna, where a sunny day is. There's a very small chance of rainfall, only about 4%. Winds will be light at 8mph and gusts of 18.3mph at 4 PM. The humidity will be on the higher side, averaging about 64%, the maximum being 79% at 7 AM and 46% being its lowest at 1 PM. Barometric pressure is its highest of 30.07inHg at 10 AM, a lowest point of 29.96inHg at 4 PM with an avg 30.01inHg.
Gretna, LA Weather Forecast - 10 Day Detailed

5 Day Forecast Nearby

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