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 >

Hazardous Weather Conditions

Current conditions at

Harrisonville Lawrence Smith Memorial Airport (KLRY)

Lat: 38.61°NLon: 94.34°WElev: 915ft.

Light Rain

72°F

22°C

Humidity 94%
Wind Speed SE 6 mph
Barometer 29.93 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 19 Aug 5:55 am CDT
Extended Forecast for

Dayton MO

  • Today

    Today: A chance of showers and thunderstorms, mainly between 1pm and 2pm.  Partly sunny, with a high near 85. East northeast wind around 6 mph.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 68. North northeast wind around 5 mph becoming calm  in the evening.

    Low: 68 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, then gradually becoming sunny, with a high near 87. Calm wind becoming northeast around 6 mph in the afternoon.

    High: 87 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 66. Calm wind.

    Low: 66 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 91. Calm wind.

    High: 91 °F

    Sunny

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms after 1am.  Mostly clear, with a low around 69. Chance of precipitation is 20%.

    Low: 69 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Sunday

    Sunday: A chance of showers before 1pm.  Mostly sunny, with a high near 89. Chance of precipitation is 30%.

    High: 89 °F

    Chance
    Showers

Detailed Forecast

Today
A chance of showers and thunderstorms, mainly between 1pm and 2pm. Partly sunny, with a high near 85. East northeast wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Partly cloudy, with a low around 68. North northeast wind around 5 mph becoming calm in the evening.
Thursday
Partly sunny, then gradually becoming sunny, with a high near 87. Calm wind becoming northeast around 6 mph in the afternoon.
Thursday Night
Clear, with a low around 66. Calm wind.
Friday
Sunny, with a high near 91. Calm wind.
Friday Night
A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 69. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 91.
Saturday Night
Mostly clear, with a low around 68.
Sunday
A chance of showers before 1pm. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 93.
Monday Night
Mostly clear, with a low around 70.
Tuesday
Mostly sunny, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
Dayton MO
 38.48°N 94.21°W (Elev. 810 ft)
5:51 am CDT Aug 19, 2026
6am CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database