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

Harrison, Boone County Airport (KHRO)

Lat: 36.26°NLon: 93.15°WElev: 1365ft.

Fair

82°F

28°C

Humidity 56%
Wind Speed S 8 mph
Barometer 29.91 in (1010.7 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 19 Aug 4:53 am CDT
Extended Forecast for

3 Miles ENE Rule AR

Heat Advisory August 19, 05:26am until August 19, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 19, 05:26am until August 19, 09:00pm

    NOW until 9:00pm Wed

    Heat Advisory

  • Today

    High: 102 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 73. Northwest wind around 5 mph becoming calm  after midnight.  New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 73 °F

    Chance
    T-storms

  • Thursday

    Thursday: Mostly sunny, with a high near 93. Heat index values as high as 101. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 93 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 70. Northeast wind around 5 mph becoming calm  in the evening.

    Low: 70 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 94. Calm wind becoming northeast around 5 mph.

    High: 94 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 70. Calm wind.

    Low: 70 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 96. Calm wind becoming north around 5 mph.

    High: 96 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 73. Southeast wind around 5 mph.

    Low: 73 °F

    Mostly Clear

Detailed Forecast

Today
A slight chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 102. Heat index values as high as 107. Southwest wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Tonight
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. Northwest wind around 5 mph becoming calm after midnight. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Mostly sunny, with a high near 93. Heat index values as high as 101. Calm wind becoming northeast around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 70. Northeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 94. Calm wind becoming northeast around 5 mph.
Friday Night
Mostly clear, with a low around 70. Calm wind.
Saturday
Mostly sunny, with a high near 96. Calm wind becoming north around 5 mph.
Saturday Night
Mostly clear, with a low around 73. Southeast wind around 5 mph.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95. Southeast wind around 5 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 96. Southwest wind around 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 75. South wind around 5 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 97. Southwest wind 5 to 10 mph becoming northwest in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Rule AR
 36.29°N 93.39°W
3:50 am CDT Aug 19, 2026
5am 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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