Severe Thunderstorms and Heavy Rain Across the Ohio Valley;

Severe thunderstorms with damaging wind gusts will be possible from the mid-Mississippi Valley into parts of the Ohio Valley and central Appalachians. Heavy rain associated with these storms may lead to considerable flash and urban flooding impacts across portions of the Ohio Valley. Mid-summer heat persists from the Central Plains to the Southeast. Read More >

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

95°F

35°C

Humidity 51%
Wind Speed S 8 mph
Barometer 29.93 in (1012.9 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index106°F (41°C)
Last update 11 Aug 2:53 pm CDT
Extended Forecast for

Horine MO

Extreme Heat Warning August 11, 03:14pm until August 12, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 11, 03:14pm until August 12, 08:00pm

    NOW until 8:00pm Wed

    Extreme Heat Warning

  • Tonight

    Low: 77 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Isolated showers and thunderstorms between 9am and 2pm.  Mostly sunny and hot, with a high near 99. Heat index values as high as 112. Southwest wind 3 to 6 mph.  Chance of precipitation is 20%.

    High: 99 °F

    Isolated
    T-storms

  • Wednesday Night

    Wednesday Night: Isolated showers and thunderstorms before 11pm.  Mostly clear, with a low around 76. Light southwest wind.  Chance of precipitation is 20%.

    Low: 76 °F

    Isolated
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: Isolated showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms after 1pm.  Mostly sunny and hot, with a high near 98. Heat index values as high as 113. Light and variable wind becoming southwest around 5 mph in the morning.  Chance of precipitation is 20%.

    High: 98 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 75. Light south wind.

    Low: 75 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Friday Night

    Friday Night: Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny and hot, with a high near 100.

    High: 100 °F

    Hot

Detailed Forecast

Tonight
Partly cloudy, with a low around 77. South wind 3 to 5 mph.
Wednesday
Isolated showers and thunderstorms between 9am and 2pm. Mostly sunny and hot, with a high near 99. Heat index values as high as 112. Southwest wind 3 to 6 mph. Chance of precipitation is 20%.
Wednesday Night
Isolated showers and thunderstorms before 11pm. Mostly clear, with a low around 76. Light southwest wind. Chance of precipitation is 20%.
Thursday
Isolated showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 113. Light and variable wind becoming southwest around 5 mph in the morning. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 75. Light south wind.
Friday
Mostly sunny and hot, with a high near 97.
Friday Night
Partly cloudy, with a low around 74.
Saturday
Sunny and hot, with a high near 100.
Saturday Night
Mostly clear, with a low around 76.
Sunday
Sunny and hot, with a high near 100.
Sunday Night
Partly cloudy, with a low around 73.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Monday Night
Partly cloudy, with a low around 69.
Tuesday
Mostly sunny, with a high near 91.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Horine MO
 38.27°N 90.42°W (Elev. 397 ft)
1:26 pm CDT Aug 11, 2026
3pm CDT Aug 11, 2026-6pm CDT Aug 18, 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