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

Duncan, Halliburton Field Airport (KDUC)

Lat: 34.47°NLon: 97.96°WElev: 1112ft.

Fair

79°F

26°C

Humidity 61%
Wind Speed SE 5 mph
Barometer 29.93 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 6 Sep 3:15 am CDT
Extended Forecast for

Marlow OK

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

    Overnight: Clear, with a low around 75. South wind around 5 mph.

    Low: 75 °F

    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 100. Heat index values as high as 104. Calm wind becoming southeast 5 to 8 mph in the afternoon.

    High: 100 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75. Southeast wind 5 to 8 mph.

    Low: 75 °F

    Mostly Clear

  • Labor Day

    Labor Day: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm.  Sunny and hot, with a high near 100. Heat index values as high as 104. Light south wind becoming south southeast 6 to 11 mph in the morning.  Chance of precipitation is 10%.

    High: 100 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Clear, with a low around 76. South southeast wind 7 to 11 mph.

    Low: 76 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 101.

    High: 101 °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 101.

    High: 101 °F

    Hot

  • Wednesday Night

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

    Low: 76 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 75. South wind around 5 mph.
Sunday
Sunny and hot, with a high near 100. Heat index values as high as 104. Calm wind becoming southeast 5 to 8 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 75. Southeast wind 5 to 8 mph.
Labor Day
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 100. Heat index values as high as 104. Light south wind becoming south southeast 6 to 11 mph in the morning. Chance of precipitation is 10%.
Monday Night
Clear, with a low around 76. South southeast wind 7 to 11 mph.
Tuesday
Sunny and hot, with a high near 101.
Tuesday Night
Mostly clear, with a low around 76.
Wednesday
Sunny and hot, with a high near 101.
Wednesday Night
Mostly clear, with a low around 76.
Thursday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny and hot, with a high near 99.
Thursday Night
Partly cloudy, with a low around 73.
Friday
A 20 percent chance of showers. Mostly sunny and hot, with a high near 100.
Friday Night
Mostly clear, with a low around 74.
Saturday
Sunny and hot, with a high near 101.
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ABOUT THIS FORECAST

 
Point Forecast:
Marlow OK
 34.66°N 97.97°W
1:27 am CDT Sep 6, 2026
3am CDT Sep 6, 2026-6pm CDT Sep 12, 2026
 
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