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

Dangerous Heat and Possible Flooding This Week

Hot temperatures and high humidity are forecast to continue across much of east Texas into the mid-Mississippi Valley through this week. Heavy to excessive rainfall occurring at times through Friday could bring areas of flooding across parts of the central Plains into the upper Midwest and Four Corners states. Read More >

Current conditions at

Norman / Max Westheimer (KOUN)

Lat: 35.24°NLon: 97.47°WElev: 1182ft.

Fair

93°F

34°C

Humidity 44%
Wind Speed SE 15 G 21 mph
Barometer 30.03 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index97°F (36°C)
Last update 15 Sep 11:45 am CDT
Extended Forecast for

Newcastle OK

  • This Afternoon

    This Afternoon: Sunny and hot, with a high near 101. Heat index values as high as 104. South wind 15 to 17 mph, with gusts as high as 26 mph.

    High: 101 °F

    Hot

  • Tonight

    Tonight: Clear, with a low around 76. South southeast wind 10 to 15 mph, with gusts as high as 23 mph.

    Low: 76 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 99. Heat index values as high as 102. South wind 9 to 13 mph, with gusts as high as 20 mph.

    High: 99 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 74. South wind 7 to 11 mph.

    Low: 74 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 96. South wind 6 to 10 mph.

    High: 96 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 96.

    High: 96 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of showers, mainly after 1pm. Mostly sunny, with a high near 93.

    High: 93 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 101. Heat index values as high as 104. South wind 15 to 17 mph, with gusts as high as 26 mph.
Tonight
Clear, with a low around 76. South southeast wind 10 to 15 mph, with gusts as high as 23 mph.
Wednesday
Sunny and hot, with a high near 99. Heat index values as high as 102. South wind 9 to 13 mph, with gusts as high as 20 mph.
Wednesday Night
Clear, with a low around 74. South wind 7 to 11 mph.
Thursday
Sunny, with a high near 96. South wind 6 to 10 mph.
Thursday Night
Mostly clear, with a low around 73.
Friday
Sunny, with a high near 96.
Friday Night
Mostly clear, with a low around 72.
Saturday
A 30 percent chance of showers, mainly after 1pm. Mostly sunny, with a high near 93.
Saturday Night
A 50 percent chance of showers. Partly cloudy, with a low around 66.
Sunday
Showers and thunderstorms likely. Partly sunny, with a high near 84. Chance of precipitation is 60%.
Sunday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Monday
A 20 percent chance of showers. Partly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newcastle OK
 35.25°N 97.6°W
Last Update:
11:51 am CDT Sep 15, 2026
Forecast Valid:
12pm CDT Sep 15, 2026-6pm CDT Sep 21, 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