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

Fort Smith Regional Airport (KFSM)

Lat: 35.33°NLon: 94.37°WElev: 436ft.

Fair

90°F

32°C

Humidity 45%
Wind Speed E 3 mph
Barometer 29.90 in (1011.7 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 18 Aug 10:53 pm CDT
Extended Forecast for

4 Miles ESE Mulberry AR

Extreme Heat Warning August 18, 11:35pm until August 19, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 18, 11:35pm until August 19, 09:00pm

    NOW until 9:00pm Wed

    Extreme Heat Warning

  • Tonight

    Low: 75 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 105. Heat index values as high as 111. Light and variable wind becoming west 5 to 10 mph in the afternoon.

    High: 105 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76. Southwest wind around 5 mph becoming calm  after midnight.

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms before 1pm.  Sunny and hot, with a high near 100. Heat index values as high as 110. Calm wind becoming east around 5 mph in the afternoon.

    High: 100 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 73. Northeast wind around 5 mph.

    Low: 73 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 100. East wind around 5 mph.

    High: 100 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 72. East wind around 5 mph.

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 100. Northeast wind around 5 mph.

    High: 100 °F

    Hot

Detailed Forecast

Tonight
Clear, with a low around 75. East wind around 5 mph becoming calm after midnight.
Wednesday
Sunny and hot, with a high near 105. Heat index values as high as 111. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 76. Southwest wind around 5 mph becoming calm after midnight.
Thursday
A 20 percent chance of showers and thunderstorms before 1pm. Sunny and hot, with a high near 100. Heat index values as high as 110. Calm wind becoming east around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 73. Northeast wind around 5 mph.
Friday
Sunny and hot, with a high near 100. East wind around 5 mph.
Friday Night
Mostly clear, with a low around 72. East wind around 5 mph.
Saturday
Sunny and hot, with a high near 100. Northeast wind around 5 mph.
Saturday Night
Mostly clear, with a low around 73. East wind around 5 mph.
Sunday
Sunny and hot, with a high near 100. East wind 5 to 10 mph becoming southeast in the afternoon.
Sunday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 74. East wind 5 to 10 mph.
Monday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 101. East wind 5 to 10 mph becoming south in the afternoon.
Monday Night
Mostly clear, with a low around 74. Southeast wind 5 to 10 mph becoming light east after midnight.
Tuesday
A 20 percent chance of showers. Sunny and hot, with a high near 101. Light and variable wind becoming northwest 5 to 10 mph in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Mulberry AR
 35.49°N 94.01°W
10:56 pm CDT Aug 18, 2026
11pm CDT Aug 18, 2026-6pm CDT Aug 25, 2026
 
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Additional Resources

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Hourly Weather Forecast

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