Duncan Weather Forecast

    • 62
    • 85

    Mostly Sunny

    • 63
    • 86

    Mostly Sunny

    • 64
    • 85

    Rain Showers

    • 64
    • 80

    Rain Showers

    • 65
    • 83

    Slight Chance Thunderstorms

    • 66
    • 86

    Chance Thunderstorms

Today 24 May Stephens

Mostly sunny. Highs in the mid 80s. East Winds around 5 Mph.

Tonight 24 May Stephens

Mostly clear. Lows in the lower 60s. East Winds 5 to 10 Mph.

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Duncan Temperature Statistics

May Temperature

Duncan, Halliburton Field Airport (1.9 miles)

  • Lowest 2 May, 2026

    44.6 °F

  • Average May

    68.6 °F

  • Highest 15 May, 2026

    91.4 °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

    75.9 °F
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