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 with Haze

87°F

31°C

Humidity 55%
Wind Speed S 8 mph
Barometer 29.93 in (1011.7 mb)
Dewpoint 69°F (21°C)
Visibility 0.50 mi
Heat Index91°F (33°C)
Last update 18 Aug 11:56 pm CDT
Extended Forecast for

3 Miles NW Gallitin AR

Heat Advisory August 19, 12:06am until August 19, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 19, 12:06am until August 19, 09:00pm

    NOW until 9:00pm Wed

    Heat Advisory

  • Overnight

    Low: 77 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 102. Heat index values as high as 105. South wind around 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.

    High: 102 °F

    Hot

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am.  Partly cloudy, with a low around 73. North wind around 5 mph becoming east in the evening.

    Low: 73 °F

    Chance
    T-storms

  • Thursday

    Thursday: Mostly sunny, with a high near 96. Heat index values as high as 101. East wind around 5 mph.

    High: 96 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 70. Northeast wind around 5 mph.

    Low: 70 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 97. Northeast wind around 5 mph.

    High: 97 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 71. East wind around 5 mph becoming southeast after midnight.

    Low: 71 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 97. Calm wind becoming southeast around 5 mph in the morning.

    High: 97 °F

    Sunny

Detailed Forecast

Overnight
Mostly clear, with a low around 77. South wind 5 to 10 mph.
Wednesday
Sunny and hot, with a high near 102. Heat index values as high as 105. South wind around 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 73. North wind around 5 mph becoming east in the evening.
Thursday
Mostly sunny, with a high near 96. Heat index values as high as 101. East wind around 5 mph.
Thursday Night
Mostly clear, with a low around 70. Northeast wind around 5 mph.
Friday
Sunny, with a high near 97. Northeast wind around 5 mph.
Friday Night
Mostly clear, with a low around 71. East wind around 5 mph becoming southeast after midnight.
Saturday
Sunny, with a high near 97. Calm wind becoming southeast around 5 mph in the morning.
Saturday Night
Mostly clear, with a low around 72. East wind around 5 mph.
Sunday
Sunny, with a high near 97. Southeast wind 5 to 10 mph becoming south in the afternoon.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75. Southeast wind around 10 mph.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 100. South wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 75. South wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 99. Southwest wind 5 to 10 mph becoming northwest in the afternoon.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Gallitin AR
 36.23°N 94.47°W
11:50 pm CDT Aug 18, 2026
12am CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
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Additional Resources

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