Duncan Weather Forecast

    • 70
    • 84

    Decreasing Clouds

    • 71
    • 87

    Chance Thunderstorms

    • 72
    • 89

    Chance Thunderstorms

    • 72
    • 91

    Slight Chance Thunderstorms

    • 73
    • 93

    Mostly Sunny

    • 74
    • 95

    Mostly Sunny

Today 5 Jul Stephens

Mostly cloudy late this Morning, then becoming partly sunny. A slight chance of Showers. Isolated Thunderstorms. Highs in the mid 80s. Southeast Winds around 10 Mph. Chance of rain 20 percent.

Tonight 5 Jul Stephens

Partly cloudy. Humid with Lows around 70. Southeast Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Duncan Temperature Statistics

July Temperature

Duncan, Halliburton Field Airport (1.9 miles)

  • Lowest 1 July, 2025

    69.8 °F

  • Average July

    77.8 °F

  • Highest 1 July, 2025

    87.8 °F

Climate (2020–Present)

Duncan, Halliburton Field Airport (1.9 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    52 °F

  • Average 2020–2025

    63 °F

  • Average High 2020–2025

    74.8 °F
Get WillyWeather+ to remove ads