Duncan Weather Forecast

    • 50
    • 89

    Sunny

    • 47
    • 76

    Sunny

    • 56
    • 79

    Slight Chance Thunderstorms

    • 61
    • 79

    Rain Showers Likely

    • 53
    • 77

    Chance Rain Showers

    • 53
    • 72

    Mostly Sunny

Today 20 Oct Stephens

Sunny, breezy and not as cool with Highs in the upper 80s. Southwest Winds 20 to 25 Mph with Gusts up to 40 Mph.

Tonight 20 Oct Stephens

Clear. Lows around 50. North Winds 15 to 20 Mph with Gusts up to 30 Mph.

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Duncan Temperature Statistics

October Temperature

Duncan, Halliburton Field Airport (1.9 miles)

  • Lowest 16 October, 2025

    57.2 °F

  • Average October

    73.7 °F

  • Highest 12 October, 2025

    91.4 °F

Climate (2020–Present)

Duncan, Halliburton Field Airport (1.9 miles)

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  • Average Low 2020–2025

    52.1 °F

  • Average 2020–2025

    63.1 °F

  • Average High 2020–2025

    74.9 °F
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