Duncan Weather Forecast

    • 53
    • 73

    Rain Showers

    • 54
    • 78

    Sunny

    • 61
    • 84

    Sunny

    • 64
    • 88

    Mostly Sunny

    • 71
    • 90

    Partly Sunny

    • 71
    • 91

    Partly Sunny

Today 10 May Stephens

Showers and Thunderstorms likely this Morning, then Showers with a chance of Thunderstorms this afternoon. Highs in the lower 70s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 90 percent.

Tonight 10 May Stephens

Mostly cloudy with a slight chance of Showers in the Evening, then partly cloudy after midnight. Lows in the lower 50s. North Winds 10 to 15 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Duncan Temperature Statistics

May Temperature

Duncan, Halliburton Field Airport (1.9 miles)

  • Lowest 2 May, 2026

    44.6 °F

  • Average May

    63.3 °F

  • Highest 4 May, 2026

    84.2 °F

Climate (2021–Present)

Duncan, Halliburton Field Airport (1.9 miles)

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  • Average Low 2021–2026

    52.6 °F

  • Average 2021–2026

    63.8 °F

  • Average High 2021–2026

    75.8 °F
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