Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Sunday could bring areas of flooding to parts of the upper Midwest, central Great Lakes, southern New England and Virginia/North Carolina tidewater region. Read More >

Current conditions at

Rolla / Vichy, Rolla National Airport (KVIH)

Lat: 38.13°NLon: 91.77°WElev: 1148ft.

Fair

80°F

27°C

Humidity 71%
Wind Speed SE 7 mph
Barometer 30.19 in (1021.2 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 17 Sep 7:53 pm CDT
Extended Forecast for

4 Miles SW Mount Sterling MO

Heat Advisory September 17, 08:11pm until September 19, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 17, 08:11pm until September 19, 08:00pm

    NOW until 8:00pm Sat

    Heat Advisory

  • Tonight

    Low: 71 °F

    Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 4pm.  Increasing clouds, with a high near 95. Heat index values as high as 104. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 95 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Mostly cloudy during the early evening, then becoming clear, with a low around 71. Light and variable wind becoming south around 6 mph in the evening.

    Low: 71 °F

    Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 95. Southwest wind around 6 mph.

    High: 95 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 71. Light south wind.

    Low: 71 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers.  Mostly sunny, with a high near 91.

    High: 91 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 66. Chance of precipitation is 60%.

    Low: 66 °F

    Showers
    Likely

  • Monday

    Monday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm.  Mostly cloudy, with a high near 81. Chance of precipitation is 60%.

    High: 81 °F

    Showers
    Likely

Detailed Forecast

Tonight
Clear, with a low around 71. Light southeast wind.
Friday
A 20 percent chance of showers and thunderstorms after 4pm. Increasing clouds, with a high near 95. Heat index values as high as 104. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
Mostly cloudy during the early evening, then becoming clear, with a low around 71. Light and variable wind becoming south around 6 mph in the evening.
Saturday
Mostly sunny, with a high near 95. Southwest wind around 6 mph.
Saturday Night
Partly cloudy, with a low around 71. Light south wind.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 91.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Monday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 60.
Tuesday
A 20 percent chance of showers. Partly sunny, with a high near 73.
Tuesday Night
Partly cloudy, with a low around 56.
Wednesday
Mostly sunny, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
Mostly sunny, with a high near 79.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Mount Sterling MO
 38.41°N 91.66°W (Elev. 676 ft)
6:06 pm CDT Sep 17, 2026
8pm CDT Sep 17, 2026-6pm CDT Sep 24, 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