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

Heavy Rainfall and Severe Thunderstorms in the Midwest and Ohio Valley Tuesday

Multiple rounds of severe thunderstorms appear likely Tuesday across the Midwest and Ohio Valley, with severe wind gusts in excess of 75 mph as the primary threat. Heavy to excessive rainfall may lead to considerable flash and urban flooding impacts Tuesday across portions of the Ohio Valley. A Moderate Risk (level 3 of 4) of excessive rainfall has been issued. Read More >

Hazardous Weather Conditions

Current conditions at

Farmington Airport (KFAM)

Lat: 37.77°NLon: 90.43°WElev: 945ft.

Fair

80°F

27°C

Humidity 85%
Wind Speed S 6 mph
Barometer 30.05 in (1017.5 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 10 Aug 10:56 pm CDT
Extended Forecast for

Bonne Terre MO

Heat Advisory August 10, 11:44pm until August 12, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 10, 11:44pm until August 12, 08:00pm

    NOW until 8:00pm Wed

    Heat Advisory

  • Tonight

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 99. Heat index values as high as 108. Southwest wind around 8 mph.

    High: 99 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 77. Southwest wind around 7 mph.

    Low: 77 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 100. Heat index values as high as 109. Southwest wind 5 to 7 mph.

    High: 100 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 76. Southwest wind around 6 mph.

    Low: 76 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 98.

    High: 98 °F

    Hot

  • Thursday Night

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

    Low: 75 °F

    Partly Cloudy

  • Friday

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

    High: 97 °F

    Hot

Detailed Forecast

Tonight
Mostly clear, with a low around 76. Southwest wind around 7 mph.
Tuesday
Sunny and hot, with a high near 99. Heat index values as high as 108. Southwest wind around 8 mph.
Tuesday Night
Mostly clear, with a low around 77. Southwest wind around 7 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 100. Heat index values as high as 109. Southwest wind 5 to 7 mph.
Wednesday Night
Partly cloudy, with a low around 76. Southwest wind around 6 mph.
Thursday
Mostly sunny and hot, with a high near 98.
Thursday Night
Partly cloudy, with a low around 75.
Friday
Mostly sunny and hot, with a high near 97.
Friday Night
Partly cloudy, with a low around 75.
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
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Bonne Terre MO
 37.92°N 90.55°W (Elev. 860 ft)
Last Update:
10:16 pm CDT Aug 10, 2026
Forecast Valid:
11pm CDT Aug 10, 2026-6pm CDT Aug 17, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation