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 in Vicinity Light Rain

69°F

21°C

Humidity 93%
Wind Speed E 10 mph
Barometer 29.98 in (1014.1 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 19 Aug 3:53 am CDT
Extended Forecast for

4 Miles NE Mount Sterling MO

  • Overnight

    Overnight: Showers and thunderstorms. Some of the storms could produce heavy rainfall.  Low around 70. West wind around 7 mph.  Chance of precipitation is 90%.

    Low: 70 °F

    Heavy Rain

  • Wednesday

    Wednesday: Showers and thunderstorms, mainly before 10am. Some of the storms could produce heavy rainfall.  High near 82. Light east wind.  Chance of precipitation is 90%.

    High: 82 °F

    Heavy Rain
    then
    Scattered
    Showers

  • 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: Partly sunny, then gradually becoming sunny, with a high near 84. Light northeast wind.

    High: 84 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 88.

    High: 88 °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 88.

    High: 88 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

Detailed Forecast

Overnight
Showers and thunderstorms. Some of the storms could produce heavy rainfall. Low around 70. West wind around 7 mph. Chance of precipitation is 90%.
Wednesday
Showers and thunderstorms, mainly before 10am. Some of the storms could produce heavy rainfall. High near 82. Light east wind. 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
Partly sunny, then gradually becoming sunny, with a high near 84. Light northeast wind.
Thursday Night
Mostly clear, with a low around 64. Calm wind.
Friday
Sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 66.
Saturday
Sunny, with a high near 88.
Saturday Night
Mostly clear, with a low around 65.
Sunday
Mostly sunny, with a high near 84.
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 87.
Monday Night
Partly cloudy, with a low around 67.
Tuesday
Mostly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Mount Sterling MO
 38.52°N 91.57°W (Elev. 594 ft)
4:21 am CDT Aug 19, 2026
4am CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database