National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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

Hot temperatures and high humidity are forecast to continue across much of northeast Texas into the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Saturday could bring areas of flooding across parts of the central Plains into the upper Midwest/Great Lakes, and Four Corners states. Read More >

Hazardous Weather Conditions

Current conditions at

SULLIVAN (KUUV)

Lat: 38.23°NLon: 91.16°WElev: 933ft.

Fair

N/A

Humidity NA
Wind Speed SW 6 mph
Barometer 30.26 in
Dewpoint N/A
Visibility 10.00 mi
Last update 17 Sep 6:35 am CDT
Extended Forecast for

6 Miles ENE Mount Sterling MO

Heat Advisory September 17, 06:38am until September 19, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 17, 06:38am until September 19, 08:00pm

    NOW until 8:00pm Sat

    Heat Advisory

  • Today

    High: 96 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 70. South wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 95. Heat index values as high as 103. Light and variable wind.

    High: 95 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 71. Light southeast wind.

    Low: 71 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 95. Southwest wind 3 to 6 mph.

    High: 95 °F

    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 70.

    Low: 70 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 66.

    Low: 66 °F

    Slight Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 96. Heat index values as high as 106. South wind 5 to 7 mph becoming west in the afternoon.
Tonight
Mostly clear, with a low around 70. South wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 95. Heat index values as high as 103. Light and variable wind.
Friday Night
Mostly clear, with a low around 71. Light southeast wind.
Saturday
Sunny, with a high near 95. Southwest wind 3 to 6 mph.
Saturday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 70.
Sunday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 91.
Sunday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 66.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 82. Chance of precipitation is 50%.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 61.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 77.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Mostly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles ENE Mount Sterling MO
 38.52°N 91.51°W (Elev. 696 ft)
Last Update:
5:46 am CDT Sep 17, 2026
Forecast Valid:
6am CDT Sep 17, 2026-6pm CDT Sep 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation