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

Siloam Springs, Smith Field Airport (KSLG)

Lat: 36.2°NLon: 94.48°WElev: 1194ft.

Fair

78°F

26°C

Humidity 82%
Wind Speed N 6 mph
Barometer 30.07 in (1016.8 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 17 Aug 8:56 pm CDT
Extended Forecast for

Kansas OK

Heat Advisory August 18, 01:00pm until August 19, 09:00pm
Click here for hazard details and duration
Heat Advisory
  • Tonight

    Tonight: Partly cloudy, with a low around 72. North wind around 5 mph becoming east after midnight.

    Low: 72 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny and hot, with a high near 101. Heat index values as high as 106. Southeast wind around 5 mph.

    High: 101 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 79. South wind 5 to 10 mph.

    Low: 79 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 101. Heat index values as high as 104. Southwest wind 5 to 10 mph.

    High: 101 °F

    Hot

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a slight chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 74. Northeast wind around 5 mph becoming southeast after midnight.  Chance of precipitation is 20%.

    Low: 74 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: Mostly sunny, with a high near 96. East wind around 5 mph becoming north in the afternoon.

    High: 96 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 71. East wind around 5 mph.

    Low: 71 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 96. Calm wind becoming northeast around 5 mph in the morning.

    High: 96 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 71. Northeast wind around 5 mph becoming calm.

    Low: 71 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 72. North wind around 5 mph becoming east after midnight.
Tuesday
Sunny and hot, with a high near 101. Heat index values as high as 106. Southeast wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 79. South wind 5 to 10 mph.
Wednesday
Sunny and hot, with a high near 101. Heat index values as high as 104. Southwest wind 5 to 10 mph.
Wednesday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74. Northeast wind around 5 mph becoming southeast after midnight. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 96. East wind around 5 mph becoming north in the afternoon.
Thursday Night
Mostly clear, with a low around 71. East wind around 5 mph.
Friday
Sunny, with a high near 96. Calm wind becoming northeast around 5 mph in the morning.
Friday Night
Mostly clear, with a low around 71. Northeast wind around 5 mph becoming calm.
Saturday
Mostly sunny, with a high near 96. Calm wind becoming northwest around 5 mph in the morning.
Saturday Night
Mostly clear, with a low around 72. Northeast wind around 5 mph becoming east in the evening.
Sunday
Mostly sunny, with a high near 95. East wind around 5 mph becoming south in the afternoon.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. Southeast wind 5 to 10 mph.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 98. South wind around 10 mph, with gusts as high as 20 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Kansas OK
 36.21°N 94.78°W
8:51 pm CDT Aug 17, 2026
9pm 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

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