Severe Weather and Heavy Rain from the Ohio Valley to the Mid-Atlantic; Heat Persists in the South-Central U.S.

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected across portions of the Ohio Valley into southern Mid-Atlantic and Carolinas. Rounds of strong thunderstorms are expected to develop across the northern and central Plains. Sweltering heat remains most persistent across the South-Central Plains and Lower/Middle Mississippi Valley through next week. Read More >

Current conditions at

Norman / Max Westheimer (KOUN)

Lat: 35.24°NLon: 97.47°WElev: 1182ft.

Fair

76°F

24°C

Humidity 69%
Wind Speed SE 3 mph
Barometer 29.93 in
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 6 Sep 5:15 am CDT
Extended Forecast for

Newcastle OK

Heat Advisory September 6, 12:00pm until September 7, 07:00pm
Click here for hazard details and duration
Heat Advisory
  • Today

    Today: A 10 percent chance of showers after 1pm.  Mostly sunny and hot, with a high near 100. Calm wind becoming south southeast 5 to 8 mph in the afternoon.

    High: 100 °F

    Sunny then
    Slight Chance
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 75. South southeast wind 3 to 8 mph.

    Low: 75 °F

    Mostly Clear

  • Labor Day

    Labor Day: A 10 percent chance of showers after 1pm.  Increasing clouds and hot, with a high near 100. Heat index values as high as 104. Light south southwest wind becoming south 6 to 11 mph in the morning.

    High: 100 °F

    Sunny then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 76. South southeast wind 7 to 13 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 100. South wind 7 to 13 mph, with gusts as high as 20 mph.

    High: 100 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 100.

    High: 100 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly before 1pm.  Mostly sunny and hot, with a high near 98.

    High: 98 °F

    Chance
    T-storms

Detailed Forecast

Today
A 10 percent chance of showers after 1pm. Mostly sunny and hot, with a high near 100. Calm wind becoming south southeast 5 to 8 mph in the afternoon.
Tonight
Mostly clear, with a low around 75. South southeast wind 3 to 8 mph.
Labor Day
A 10 percent chance of showers after 1pm. Increasing clouds and hot, with a high near 100. Heat index values as high as 104. Light south southwest wind becoming south 6 to 11 mph in the morning.
Monday Night
Mostly clear, with a low around 76. South southeast wind 7 to 13 mph, with gusts as high as 20 mph.
Tuesday
Sunny and hot, with a high near 100. South wind 7 to 13 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 76.
Wednesday
Sunny and hot, with a high near 100.
Wednesday Night
Mostly clear, with a low around 75.
Thursday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny and hot, with a high near 98.
Thursday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 73.
Friday
A 20 percent chance of showers. Mostly sunny and hot, with a high near 98.
Friday Night
Mostly clear, with a low around 73.
Saturday
Sunny and hot, with a high near 99.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Newcastle OK
 35.25°N 97.6°W
1:27 am CDT Sep 6, 2026
5am CDT Sep 6, 2026-6pm CDT Sep 12, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database