Gretna Weather Forecast

    • 75
    • 92

    Chance Rain Showers

    • 76
    • 96

    Mostly Sunny

    • 73
    • 93

    Partly Sunny

    • 70
    • 92

    Slight Chance Thunderstorms

    • 68
    • 91

    Slight Chance Thunderstorms

    • 64
    • 86

    Mostly Sunny

Today 15 Aug Sarpy

Mostly sunny. A chance of Showers and Thunderstorms in the Morning, then a slight chance of Showers in the afternoon. Humid with Highs in the mid 90s. South Winds 10 to 15 Mph. Chance of rain 30 percent. Heat index Values up to 106 in the afternoon.

Tonight 15 Aug Sarpy

Mostly clear with a slight chance of Showers and Thunderstorms. Near steady temperature in the mid 70s. South Winds around 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Gretna Temperature Statistics

August Temperature

Omaha, Millard Airport (7.5 miles)

  • Lowest 2 August, 2025

    56.8 °F
  • Average August

    73.4 °F
  • Highest 8 August, 2025

    91.9 °F

Climate (2020–Present)

Omaha, Millard Airport (7.5 miles)

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  • Average Low 2020–2025

    43.3 °F
  • Average 2020–2025

    53.6 °F
  • Average High 2020–2025

    64.1 °F
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