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National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 35.25°N 97.6°W (Text-Only)
NWS Forecast for: Newcastle OK
Issued by: National Weather Service Norman, OK
Last Update: 12:36 am CDT Jun 30, 2026		Print

  • Overnight

    Overnight: Mostly clear, with a low around 76. South wind 20 to 22 mph, with gusts as high as 33 mph.

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94. South wind 17 to 21 mph, with gusts as high as 31 mph.

    High: 94 °F

    Sunny

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 76. South wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94. Heat index values as high as 97. South wind 15 to 18 mph, with gusts as high as 28 mph.

    High: 94 °F

    Sunny

  • Wednesday
    Night

    Wednesday Night: Partly cloudy, with a low around 76. South southeast wind 14 to 17 mph, with gusts as high as 26 mph.

    Low: 76 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 96.

    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 99.

    High: 99 °F

    Hot

  • Friday
    Night

    Friday Night: Mostly clear, with a low around 78.

    Low: 78 °F

    Mostly Clear

    • Overnight: Mostly clear, with a low around 76. South wind 20 to 22 mph, with gusts as high as 33 mph.

    Tuesday: Sunny, with a high near 94. South wind 17 to 21 mph, with gusts as high as 31 mph.

    Tuesday Night: Mostly clear, with a low around 76. South wind 15 to 20 mph, with gusts as high as 30 mph.

    Wednesday: Sunny, with a high near 94. Heat index values as high as 97. South wind 15 to 18 mph, with gusts as high as 28 mph.

    Wednesday Night: Partly cloudy, with a low around 76. South southeast wind 14 to 17 mph, with gusts as high as 26 mph.

    Thursday: Mostly sunny, with a high near 96.

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

    Friday: Mostly sunny and hot, with a high near 99.

    Friday Night: Mostly clear, with a low around 78.

    Independence Day: Mostly sunny and hot, with a high near 101.

    Saturday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.

    Sunday: A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 99.

    Sunday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.

    Monday: Mostly sunny, with a high near 96.


    Newcastle OK
     35.25°N 97.6°W

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