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National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 34.5°N 97.96°W (Text-Only)
NWS Forecast for: Duncan OK
Issued by: National Weather Service Norman, OK
Last Update: 4:47 am CDT Jun 30, 2026		Print

  • Today

    Today: Sunny, with a high near 95. South wind 13 to 16 mph, with gusts as high as 24 mph.

    High: 95 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 75. South southeast wind 11 to 16 mph, with gusts as high as 24 mph.

    Low: 75 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94. Heat index values as high as 97. South wind 10 to 14 mph, with gusts as high as 21 mph.

    High: 94 °F

    Sunny

  • Wednesday
    Night

    Wednesday Night: Mostly clear during the early evening, then becoming mostly cloudy, with a low around 76. South southeast wind 9 to 14 mph, with gusts as high as 21 mph.

    Low: 76 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 96. South wind 8 to 13 mph, with gusts as high as 20 mph.

    High: 96 °F

    Mostly Sunny

  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around 77.

    Low: 77 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Friday
    Night

    Friday Night: Mostly clear, with a low around 77.

    Low: 77 °F

    Mostly Clear

  • Independence
    Day

    Independence Day: Mostly sunny and hot, with a high near 100.

    High: 100 °F

    Hot

    • Today: Sunny, with a high near 95. South wind 13 to 16 mph, with gusts as high as 24 mph.

    Tonight: Mostly clear, with a low around 75. South southeast wind 11 to 16 mph, with gusts as high as 24 mph.

    Wednesday: Sunny, with a high near 94. Heat index values as high as 97. South wind 10 to 14 mph, with gusts as high as 21 mph.

    Wednesday Night: Mostly clear during the early evening, then becoming mostly cloudy, with a low around 76. South southeast wind 9 to 14 mph, with gusts as high as 21 mph.

    Thursday: Mostly sunny, with a high near 96. South wind 8 to 13 mph, with gusts as high as 20 mph.

    Thursday Night: Partly cloudy, with a low around 77.

    Friday: Mostly sunny and hot, with a high near 97.

    Friday Night: Mostly clear, with a low around 77.

    Independence Day: Mostly sunny and hot, with a high near 100.

    Saturday Night: Partly cloudy, with a low around 77.

    Sunday: A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 97.

    Sunday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.

    Monday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.


    Duncan OK
     34.5°N 97.96°W

    Visit your local NWS office at: https://www.weather.gov/oun