National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Areas of Extreme Heat and Excessive Rainfall Potential

Dangerous and extreme heat will remain across portions of the central U.S. this week, persisting across the mid to lower Mississippi Valley, Gulf Coast, southern Plains and portions of Texas. A heat wave over the Southwest U.S. will peak this weekend. Heavy to excessive rainfall may produce flash flooding from the Delmarva Peninsula north into the Hudson Valley today and tonight. Read More >

Hazardous Weather Conditions

Current conditions at

Norman / Max Westheimer (KOUN)

Lat: 35.24°NLon: 97.47°WElev: 1182ft.

Fair

81°F

27°C

Humidity 66%
Wind Speed S 9 mph
Barometer 29.89 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 28 Jul 8:45 am CDT
Extended Forecast for

3 Miles E Newcastle OK

Heat Advisory July 28, 11:00am until July 28, 09:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Partly sunny and hot, with a high near 102. Heat index values as high as 106. South wind around 10 mph.

    High: 102 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 78. South wind 7 to 9 mph.

    Low: 78 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 102. Heat index values as high as 106. South southwest wind 5 to 10 mph.

    High: 102 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 78. South southeast wind 8 to 11 mph.

    Low: 78 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 101. South wind 7 to 13 mph.

    High: 101 °F

    Hot

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 78.

    Low: 78 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Friday

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

    High: 101 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

Detailed Forecast

Today
Partly sunny and hot, with a high near 102. Heat index values as high as 106. South wind around 10 mph.
Tonight
Mostly clear, with a low around 78. South wind 7 to 9 mph.
Wednesday
Mostly sunny and hot, with a high near 102. Heat index values as high as 106. South southwest wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 78. South southeast wind 8 to 11 mph.
Thursday
Mostly sunny and hot, with a high near 101. South wind 7 to 13 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 78.
Friday
Mostly sunny and hot, with a high near 101.
Friday Night
Mostly clear, with a low around 74.
Saturday
Sunny, with a high near 94.
Saturday Night
Clear, with a low around 69.
Sunday
Sunny, with a high near 93.
Sunday Night
Clear, with a low around 69.
Monday
Sunny, with a high near 96.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Newcastle OK
 35.25°N 97.54°W
Last Update:
3:17 am CDT Jul 28, 2026
Forecast Valid:
9am CDT Jul 28, 2026-6pm CDT Aug 3, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation