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

Severe Weather and Heavy Rainfall from the Midwest to the Ohio Valley; Mid-Summer Heat Continues

Severe thunderstorm and heavy rainfall threats will persist from the Midwest to Lower Great Lakes through Monday, shifting into the Ohio Valley and Central Appalachians Monday evening into Tuesday. Mid-summer heat will continue across much of the CONUS this week, with record highs possible well into the 100s across the south-central High Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Norman / Max Westheimer (KOUN)

Lat: 35.24°NLon: 97.47°WElev: 1182ft.

Fair

95°F

35°C

Humidity 34%
Wind Speed SE 14 mph
Barometer 29.90 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 9 Aug 7:45 pm CDT
Extended Forecast for

3 Miles SSE Slaughterville OK

Heat Advisory August 10, 12:00pm until August 10, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Clear, with a low around 75. South wind 8 to 11 mph.

    Low: 75 °F

    Clear

  • Monday

    Monday: Sunny and hot, with a high near 100. Heat index values as high as 103. South wind 9 to 11 mph.

    High: 100 °F

    Hot

  • Monday Night

    Monday Night: Clear, with a low around 75. South wind 9 to 13 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 98. Heat index values as high as 102. South wind 10 to 13 mph, with gusts as high as 20 mph.

    High: 98 °F

    Hot

  • Tuesday Night

    Tuesday Night: Clear, with a low around 76. South wind 10 to 13 mph, with gusts as high as 20 mph.

    Low: 76 °F

    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 77.

    Low: 77 °F

    Mostly Clear

  • Thursday

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

    High: 100 °F

    Hot

  • Thursday Night

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

    Low: 76 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 75. South wind 8 to 11 mph.
Monday
Sunny and hot, with a high near 100. Heat index values as high as 103. South wind 9 to 11 mph.
Monday Night
Clear, with a low around 75. South wind 9 to 13 mph, with gusts as high as 20 mph.
Tuesday
Sunny and hot, with a high near 98. Heat index values as high as 102. South wind 10 to 13 mph, with gusts as high as 20 mph.
Tuesday Night
Clear, with a low around 76. South wind 10 to 13 mph, with gusts as high as 20 mph.
Wednesday
Sunny and hot, with a high near 100.
Wednesday Night
Mostly clear, with a low around 77.
Thursday
Sunny and hot, with a high near 100.
Thursday Night
Mostly clear, with a low around 76.
Friday
Sunny and hot, with a high near 99.
Friday Night
Mostly clear, with a low around 76.
Saturday
Sunny and hot, with a high near 99.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Sunny and hot, with a high near 99.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Slaughterville OK
 35.05°N 97.26°W
Last Update:
2:32 pm CDT Aug 9, 2026
Forecast Valid:
8pm CDT Aug 9, 2026-6pm CDT Aug 16, 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