Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Current conditions at

St. Joseph, Rosecrans Memorial Airport (KSTJ)

Lat: 39.77°NLon: 94.91°WElev: 823ft.

Fair

81°F

27°C

Humidity 85%
Wind Speed E 3 mph
Barometer 29.80 in (1008.2 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 12 Aug 10:53 pm CDT
Extended Forecast for

4 Miles SSE De Kalb MO

Heat Advisory August 12, 11:24pm until August 13, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 12, 11:24pm until August 13, 08:00pm

    NOW until 8:00pm Thu

    Heat Advisory

  • Tonight

    Low: 76 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, then gradually becoming sunny, with a high near 96. Heat index values as high as 106. South wind 9 to 13 mph, with gusts as high as 21 mph.

    High: 96 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 76. South southeast wind 9 to 11 mph, with gusts as high as 18 mph.

    Low: 76 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers between 10am and 1pm.  Partly sunny, with a high near 94. Heat index values as high as 102. South southwest wind 8 to 10 mph.  Chance of precipitation is 30%.

    High: 94 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, mainly after 1am.  Mostly cloudy, with a low around 75. South wind 7 to 9 mph becoming east northeast in the evening.  Chance of precipitation is 40%.

    Low: 75 °F

    Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm.  Partly sunny, with a high near 95. Chance of precipitation is 20%.

    High: 95 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday Night

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

    Low: 74 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 90.

    High: 90 °F

    Partly Sunny

Detailed Forecast

Tonight
Partly cloudy, with a low around 76. Southeast wind 6 to 8 mph.
Thursday
Partly sunny, then gradually becoming sunny, with a high near 96. Heat index values as high as 106. South wind 9 to 13 mph, with gusts as high as 21 mph.
Thursday Night
Partly cloudy, with a low around 76. South southeast wind 9 to 11 mph, with gusts as high as 18 mph.
Friday
A chance of showers between 10am and 1pm. Partly sunny, with a high near 94. Heat index values as high as 102. South southwest wind 8 to 10 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 75. South wind 7 to 9 mph becoming east northeast in the evening. Chance of precipitation is 40%.
Saturday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Partly sunny, with a high near 95. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 74.
Sunday
Partly sunny, with a high near 90.
Sunday Night
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 84.
Monday Night
A chance of showers. Partly cloudy, with a low around 68. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 87.
Tuesday Night
Partly cloudy, with a low around 70.
Wednesday
Mostly sunny, with a high near 89.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE De Kalb MO
 39.53°N 94.89°W (Elev. 1076 ft)
10:41 pm CDT Aug 12, 2026
11pm CDT Aug 12, 2026-6pm CDT Aug 19, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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