Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Siloam Springs, Smith Field Airport (KSLG)

Lat: 36.2°NLon: 94.48°WElev: 1194ft.

Fair

107°F

42°C

Humidity 22%
Wind Speed SW 15 G 23 mph
Barometer 29.89 in (1010.1 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index109°F (43°C)
Last update 19 Aug 2:56 pm CDT
Extended Forecast for

3 Miles NNW Baron OK

Heat Advisory August 19, 03:14pm until August 19, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 19, 03:14pm until August 19, 09:00pm

    NOW until 9:00pm Wed

    Heat Advisory

  • This Afternoon

    High: 106 °F

    Hot

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 75. South wind around 5 mph becoming calm  in the evening.

    Low: 75 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: Mostly cloudy through mid morning, then gradual clearing, with a high near 99. Heat index values as high as 102. Calm wind becoming north around 5 mph in the afternoon.

    High: 99 °F

    Becoming
    Sunny

  • Thursday Night

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

    Low: 71 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 100. Calm wind becoming east around 5 mph in the afternoon.

    High: 100 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 72. Calm wind.

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm.  Mostly sunny and hot, with a high near 100. Calm wind becoming south around 5 mph in the afternoon.  Chance of precipitation is 20%.

    High: 100 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 73. Calm wind becoming southeast around 5 mph.

    Low: 73 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 106. Southwest wind around 10 mph.
Tonight
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75. South wind around 5 mph becoming calm in the evening.
Thursday
Mostly cloudy through mid morning, then gradual clearing, with a high near 99. Heat index values as high as 102. Calm wind becoming north around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 71. North wind around 5 mph becoming calm.
Friday
Sunny and hot, with a high near 100. Calm wind becoming east around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 72. Calm wind.
Saturday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Mostly sunny and hot, with a high near 100. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 73. Calm wind becoming southeast around 5 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 100. East wind around 5 mph becoming south in the afternoon.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75. Southeast wind around 5 mph.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 100. South wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 75. South wind 5 to 10 mph.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 101. Southwest wind 5 to 10 mph.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Baron OK
 35.97°N 94.64°W
2:56 pm CDT Aug 19, 2026
3pm CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
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Additional Resources

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Hourly Weather Forecast

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