Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Lawton, Lawton Municipal Airport (KLAW)

Lat: 34.56°NLon: 98.42°WElev: 1109ft.

Fair

99°F

37°C

Humidity 29%
Wind Speed NE 6 mph
Barometer 29.97 in (1013.4 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 17 Aug 7:53 pm CDT
Extended Forecast for

Fort Sill OK

Heat Advisory August 18, 11:00am until August 18, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 10pm.  Mostly clear, with a low around 75. East wind 3 to 6 mph.

    Low: 75 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 107. Light and variable wind becoming west southwest 5 to 10 mph in the morning.

    High: 107 °F

    Hot

  • Tuesday Night

    Tuesday Night: Clear, with a low around 78. South wind 7 to 10 mph.

    Low: 78 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 108. Southwest wind 7 to 10 mph.

    High: 108 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 77. South wind 6 to 9 mph.

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 104.

    High: 104 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 104.

    High: 104 °F

    Hot

  • Friday Night

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

    Low: 75 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before 10pm. Mostly clear, with a low around 75. East wind 3 to 6 mph.
Tuesday
Sunny and hot, with a high near 107. Light and variable wind becoming west southwest 5 to 10 mph in the morning.
Tuesday Night
Clear, with a low around 78. South wind 7 to 10 mph.
Wednesday
Sunny and hot, with a high near 108. Southwest wind 7 to 10 mph.
Wednesday Night
Mostly clear, with a low around 77. South wind 6 to 9 mph.
Thursday
Mostly sunny and hot, with a high near 104.
Thursday Night
Mostly clear, with a low around 74.
Friday
Sunny and hot, with a high near 104.
Friday Night
Mostly clear, with a low around 75.
Saturday
Sunny and hot, with a high near 104.
Saturday Night
Mostly clear, with a low around 76.
Sunday
Sunny and hot, with a high near 104.
Sunday Night
Mostly clear, with a low around 77.
Monday
Sunny and hot, with a high near 107.
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ABOUT THIS FORECAST

 
Point Forecast:
Fort Sill OK
 34.65°N 98.43°W
1:32 pm CDT Aug 17, 2026
8pm CDT Aug 17, 2026-6pm CDT Aug 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database