Severe Weather and Heavy Rain from the Ohio Valley to the Mid-Atlantic; Heat Persists in the South-Central U.S.

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected across portions of the Ohio Valley into southern Mid-Atlantic and Carolinas. Rounds of strong thunderstorms are expected to develop across the northern and central Plains. Sweltering heat remains most persistent across the South-Central Plains and Lower/Middle Mississippi Valley through next week. Read More >

Current conditions at

St. Joseph, Rosecrans Memorial Airport (KSTJ)

Lat: 39.77°NLon: 94.91°WElev: 823ft.

Fair

94°F

34°C

Humidity 48%
Wind Speed Calm
Barometer 29.98 in (1014.2 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index102°F (39°C)
Last update 5 Sep 11:53 am CDT
Extended Forecast for

Saint Joseph MO

Extreme Heat Warning September 5, 12:35pm until September 8, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning September 5, 12:35pm until September 8, 08:00pm

    NOW until 8:00pm Tue

    Extreme Heat Warning

  • This Afternoon

    High: 99 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 73. Light and variable wind.

    Low: 73 °F

    Mostly Clear

  • Sunday

    Sunday: A slight chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 96. Heat index values as high as 102. East wind 3 to 7 mph.  Chance of precipitation is 20%.

    High: 96 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 1am.  Partly cloudy, with a low around 72. East southeast wind around 8 mph.  Chance of precipitation is 20%.

    Low: 72 °F

    Slight Chance
    T-storms

  • Labor Day

    Labor Day: Mostly sunny, with a high near 95. Southeast wind 7 to 11 mph.

    High: 95 °F

    Mostly Sunny

  • Monday Night

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

    Low: 75 °F

    Partly Cloudy

  • Tuesday

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

    High: 100 °F

    Hot

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 73. Chance of precipitation is 30%.

    Low: 73 °F

    Mostly Clear
    then Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly sunny and hot, with a high near 99. Heat index values as high as 106. South wind around 5 mph.
Tonight
Mostly clear, with a low around 73. Light and variable wind.
Sunday
A slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 96. Heat index values as high as 102. East wind 3 to 7 mph. Chance of precipitation is 20%.
Sunday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. East southeast wind around 8 mph. Chance of precipitation is 20%.
Labor Day
Mostly sunny, with a high near 95. Southeast wind 7 to 11 mph.
Monday Night
Partly cloudy, with a low around 75.
Tuesday
Sunny and hot, with a high near 100.
Tuesday Night
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73. Chance of precipitation is 30%.
Wednesday
A chance of showers before 1pm. Mostly sunny, with a high near 92. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 68. Chance of precipitation is 50%.
Thursday
Mostly sunny, with a high near 88.
Thursday Night
Partly cloudy, with a low around 68.
Friday
Sunny, with a high near 91.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Saint Joseph MO
 39.77°N 94.86°W (Elev. 899 ft)
5:36 am CDT Sep 5, 2026
12pm CDT Sep 5, 2026-6pm CDT Sep 11, 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