Gretna Weather Forecast

    • 79
    • 94

    Partly Sunny

    • 80
    • 95

    Mostly Sunny

    • 81
    • 96

    Mostly Sunny

    • 81
    • 97

    Hot

    • 81
    • 97

    Hot

    • 81
    • 96

    Slight Chance Thunderstorms

Today 25 Jul Upper Jefferson

Mostly sunny. Humid with Highs in the mid 90s. Northwest Winds around 5 Mph. Heat index Values up to 105.

Tonight 25 Jul Upper Jefferson

Mostly cloudy in the Evening, then becoming partly cloudy. Humid with Lows in the upper 70s. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Gretna Temperature Statistics

July Temperature

New Orleans Naval Air Station - Alvin Callender Field (5.6 miles)

  • Lowest 8 July, 2026

    72 °F

  • Average July

    82 °F

  • Highest 20 July, 2026

    96.1 °F

Climate (2021–2026)

New Orleans Naval Air Station - Alvin Callender Field (5.6 miles)

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  • Average Low 2021–2026

    62.2 °F

  • Average 2021–2026

    71 °F

  • Average High 2021–2026

    79.3 °F
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