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

Columbia, Columbia Regional Airport (KCOU)

Lat: 38.82°NLon: 92.22°WElev: 889ft.

Thunderstorm in Vicinity Light Rain

69°F

21°C

Humidity 96%
Wind Speed SW 8 mph
Barometer 29.97 in (1014.1 mb)
Dewpoint 68°F (20°C)
Visibility 9.00 mi
Last update 19 Aug 4:54 am CDT
Extended Forecast for

6 Miles SSW Harrisburg MO

  • Overnight

    Overnight: Showers and possibly a thunderstorm.  Low around 69. Southwest wind around 8 mph.  Chance of precipitation is 80%.

    Low: 69 °F

    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly before 9am.  Mostly cloudy, with a high near 81. East wind 3 to 5 mph.  Chance of precipitation is 70%.

    High: 81 °F

    T-storms
    Likely then
    Isolated
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 67. Light northeast wind.

    Low: 67 °F

    Partly Cloudy

  • Thursday

    Thursday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 83. Northeast wind 3 to 5 mph.

    High: 83 °F

    Patchy Fog
    then Sunny

  • Thursday Night

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

    Low: 66 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 1am.  Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Low around 69. Southwest wind around 8 mph. Chance of precipitation is 80%.
Wednesday
Showers and thunderstorms likely, mainly before 9am. Mostly cloudy, with a high near 81. East wind 3 to 5 mph. Chance of precipitation is 70%.
Wednesday Night
Partly cloudy, with a low around 67. Light northeast wind.
Thursday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 83. Northeast wind 3 to 5 mph.
Thursday Night
Mostly clear, with a low around 66. Calm wind.
Friday
Sunny, with a high near 86.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 68.
Saturday
Mostly sunny, with a high near 86.
Saturday Night
Mostly clear, with a low around 66.
Sunday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 83.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Monday
Partly sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 68.
Tuesday
Mostly sunny, with a high near 88.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SSW Harrisburg MO
 39.07°N 92.49°W (Elev. 801 ft)
5:21 am CDT Aug 19, 2026
5am CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database