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

Severe Weather and Heavy Rainfall in the Ohio Valley; Heat Continuing in the South and Southeast

Severe thunderstorms with damaging wind gusts will be possible from the mid-Mississippi Valley into parts of the Ohio Valley and central Appalachians tonight. Heavy rain associated with these storms may lead to considerable flash and urban flooding impacts across portions of the Ohio Valley. Mid-summer heat persists from the Central Plains to the Southeast. Read More >

Hazardous Weather Conditions

Current conditions at

Okmulgee, Okmulgee Municipal Airport (KOKM)

Lat: 35.67°NLon: 95.95°WElev: 722ft.

Fair

83°F

28°C

Humidity 60%
Wind Speed S 7 mph
Barometer 29.89 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 12 Aug 4:15 am CDT
Extended Forecast for

Winchester OK

Heat Advisory August 12, 04:41am until August 14, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 12, 04:41am until August 14, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Today

    High: 101 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 80. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 80 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 101. Heat index values as high as 106. South wind around 15 mph, with gusts as high as 25 mph.

    High: 101 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 80. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 80 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 101. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 101 °F

    Hot

  • Friday Night

    Friday Night: Clear, with a low around 78. South wind around 10 mph.

    Low: 78 °F

    Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 100. Southwest wind around 10 mph.

    High: 100 °F

    Hot

  • Saturday Night

    Saturday Night: Clear, with a low around 78. South wind 5 to 10 mph.

    Low: 78 °F

    Clear

Detailed Forecast

Today
Sunny and hot, with a high near 101. Heat index values as high as 108. South wind around 10 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 80. South wind around 10 mph, with gusts as high as 20 mph.
Thursday
Sunny and hot, with a high near 101. Heat index values as high as 106. South wind around 15 mph, with gusts as high as 25 mph.
Thursday Night
Clear, with a low around 80. South wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Sunny and hot, with a high near 101. South wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
Clear, with a low around 78. South wind around 10 mph.
Saturday
Sunny and hot, with a high near 100. Southwest wind around 10 mph.
Saturday Night
Clear, with a low around 78. South wind 5 to 10 mph.
Sunday
Sunny and hot, with a high near 104. Southwest wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 77. South wind around 5 mph.
Monday
Sunny and hot, with a high near 102. West wind around 5 mph becoming northeast in the afternoon.
Monday Night
Mostly clear, with a low around 76. East wind around 5 mph becoming southeast after midnight.
Tuesday
Sunny and hot, with a high near 101. South wind around 5 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Winchester OK
 35.78°N 96°W
Last Update:
2:50 am CDT Aug 12, 2026
Forecast Valid:
4am CDT Aug 12, 2026-6pm CDT Aug 18, 2026
 
Forecast Discussion
 
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Additional Resources

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