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

Rolla / Vichy, Rolla National Airport (KVIH)

Lat: 38.13°NLon: 91.77°WElev: 1148ft.

Thunderstorm Rain Fog/Mist and Windy

71°F

22°C

Humidity 96%
Wind Speed N 26 G 39 mph
Barometer 30.02 in (1015.3 mb)
Dewpoint 70°F (21°C)
Visibility 2.50 mi
Last update 19 Aug 2:53 am CDT
Extended Forecast for

4 Miles SW Mount Sterling MO

  • Overnight

    Overnight: Showers and thunderstorms. Some of the storms could produce heavy rainfall.  Low around 68. Northeast wind 3 to 5 mph.  Chance of precipitation is 90%.

    Low: 68 °F

    Heavy Rain

  • Wednesday

    Wednesday: Showers and thunderstorms, mainly before 10am. Some of the storms could produce heavy rainfall.  High near 82. East wind around 5 mph becoming calm  in the morning.  Chance of precipitation is 90%.

    High: 82 °F

    Heavy Rain
    then Isolated
    T-storms

  • Wednesday Night

    Wednesday Night: Isolated showers and thunderstorms before midnight.  Partly cloudy, with a low around 66. Light northeast wind.  Chance of precipitation is 20%.

    Low: 66 °F

    Isolated
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 83. Light northeast wind.

    High: 83 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Friday Night

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

    Low: 66 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Saturday Night

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

    Low: 66 °F

    Mostly Clear

Detailed Forecast

Overnight
Showers and thunderstorms. Some of the storms could produce heavy rainfall. Low around 68. Northeast wind 3 to 5 mph. Chance of precipitation is 90%.
Wednesday
Showers and thunderstorms, mainly before 10am. Some of the storms could produce heavy rainfall. High near 82. East wind around 5 mph becoming calm in the morning. Chance of precipitation is 90%.
Wednesday Night
Isolated showers and thunderstorms before midnight. Partly cloudy, with a low around 66. Light northeast wind. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 83. Light northeast wind.
Thursday Night
Mostly clear, with a low around 65. Calm wind.
Friday
Sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 66.
Saturday
Sunny, with a high near 87.
Saturday Night
Mostly clear, with a low around 66.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Monday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 67.
Tuesday
Mostly sunny, with a high near 88.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Mount Sterling MO
 38.43°N 91.66°W (Elev. 600 ft)
3:06 am CDT Aug 19, 2026
3am 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