Gretna Weather Forecast

    • 61
    • 95

    Chance Thunderstorms

    • 61
    • 88

    Rain Showers Likely

    • 64
    • 93

    Rain Showers Likely

    • 51
    • 88

    Rain Showers Likely

    • 45
    • 70

    Slight Chance Rain Showers

    • 49
    • 71

    Slight Chance Thunderstorms

Today 15 May Sarpy

Mostly sunny. Warmer with Highs in the mid 90s. Southeast Winds 5 to 10 Mph.

Tonight 15 May Sarpy

Mostly cloudy. A chance of Showers and Thunderstorms, mainly in the evening. Lows in the lower 60s. South Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming northeast after midnight. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Gretna Temperature Statistics

May Temperature

Omaha, Millard Airport (7.5 miles)

  • Lowest 2 May, 2026

    33.1 °F

  • Average May

    59.3 °F

  • Highest 11 May, 2026

    83.5 °F

Climate (2021–Present)

Omaha, Millard Airport (7.5 miles)

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  • Average Low 2021–2026

    43.5 °F

  • Average 2021–2026

    53.9 °F

  • Average High 2021–2026

    64.5 °F
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