Dangerous Heat in the Southwest; Severe Thunderstorms from the Central Plains into the Ohio Valley

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Isolated to widely scattered severe storms are expected across parts of the central and southern High Plains, Great Lakes into the Ohio Valley, and parts of the Ozarks to Lower Mississippi Valley today. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Smith Regional Airport (KFSM)

Lat: 35.33°NLon: 94.37°WElev: 436ft.

Fair

81°F

27°C

Humidity 58%
Wind Speed W 3 mph
Barometer 29.95 in (1013.3 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 26 Aug 6:53 am CDT
Extended Forecast for

3 Miles NW Charleston AR

  • Today

    Today: Showers and thunderstorms likely, mainly after 4pm.  Mostly sunny, with a high near 98. Heat index values as high as 107. Calm wind becoming east around 5 mph in the afternoon.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 98 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 10pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 71. East wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    T-storms
    Likely then
    Slight Chance
    T-storms

  • Thursday

    Thursday: Sunny, with a high near 96. Heat index values as high as 100. Light and variable wind becoming north 5 to 10 mph in the afternoon.

    High: 96 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 66. Northeast wind 5 to 10 mph.

    Low: 66 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 95. Northeast wind around 5 mph.

    High: 95 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 65. East wind around 5 mph.

    Low: 65 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 96. East wind 5 to 10 mph.

    High: 96 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 67. East wind 5 to 10 mph.

    Low: 67 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 99. East wind 5 to 10 mph becoming south in the afternoon.

    High: 99 °F

    Sunny

Detailed Forecast

Today
Showers and thunderstorms likely, mainly after 4pm. Mostly sunny, with a high near 98. Heat index values as high as 107. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely, mainly before 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 71. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Sunny, with a high near 96. Heat index values as high as 100. Light and variable wind becoming north 5 to 10 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 66. Northeast wind 5 to 10 mph.
Friday
Sunny, with a high near 95. Northeast wind around 5 mph.
Friday Night
Clear, with a low around 65. East wind around 5 mph.
Saturday
Sunny, with a high near 96. East wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 67. East wind 5 to 10 mph.
Sunday
Sunny, with a high near 99. East wind 5 to 10 mph becoming south in the afternoon.
Sunday Night
Mostly clear, with a low around 70. Southeast wind 5 to 10 mph.
Monday
Sunny and hot, with a high near 100. East wind 5 to 10 mph becoming south in the afternoon.
Monday Night
Mostly clear, with a low around 73. Southeast wind 5 to 10 mph.
Tuesday
Sunny and hot, with a high near 100. Calm wind becoming south around 5 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Charleston AR
 35.33°N 94.09°W
6:50 am CDT Aug 26, 2026
7am CDT Aug 26, 2026-6pm CDT Sep 1, 2026
 
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Additional Resources

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