Duncan Weather Forecast

    • 44
    • 72

    Mostly Sunny

    • 52
    • 73

    Partly Sunny

    • 57
    • 66

    Mostly Cloudy

    • 63
    • 77

    Mostly Cloudy

    • 59
    • 83

    Slight Chance Thunderstorms

    • 51
    • 80

    Partly Sunny

Today 19 Apr Stephens

Sunny. Highs in the lower 70s. Southwest Winds 5 to 10 Mph.

Tonight 19 Apr Stephens

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 40s. South Winds 5 to 10 Mph.

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Duncan Temperature Statistics

April Temperature

Duncan, Halliburton Field Airport (1.9 miles)

  • Lowest 5 April, 2026

    42.8 °F

  • Average April

    67.4 °F

  • Highest 13 April, 2026

    87.8 °F

Climate (2021–Present)

Duncan, Halliburton Field Airport (1.9 miles)

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  • Average Low 2021–2026

    52.5 °F

  • Average 2021–2026

    63.7 °F

  • Average High 2021–2026

    75.8 °F
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