Gretna Weather Forecast

    • 67
    • 87

    Chance Thunderstorms

    • 63
    • 85

    Partly Sunny

    • 66
    • 80

    Chance Thunderstorms

    • 67
    • 83

    Partly Sunny

    • 67
    • 85

    Slight Chance Thunderstorms

    • 65
    • 85

    Mostly Sunny

Today 21 Aug Sarpy

Mostly sunny. Near steady temperature in the upper 70s. Northwest Winds around 5 Mph.

Tonight 21 Aug Sarpy

Mostly clear this Evening, then partly cloudy with a slight chance of Showers after midnight. Patchy fog after midnight. Lows in the mid 60s. Northwest Winds around 5 Mph this Evening, becoming light and variable. Chance of rain 20 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Gretna Temperature Statistics

August Temperature

Omaha, Millard Airport (7.5 miles)

  • Lowest 5 August, 2026

    60.8 °F

  • Average August

    75.8 °F

  • Highest 11 August, 2026

    93.2 °F

Climate (2021–2026)

Omaha, Millard Airport (7.5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    43.5 °F

  • Average 2021–2026

    53.8 °F

  • Average High 2021–2026

    64.4 °F
Get WillyWeather+ to remove ads