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

Severe Thunderstorms in the Northern Plains; Heavy Rainfall in the Mississippi and Tennessee Valleys; Critical Fire Weather in the Southwest

Severe thunderstorms, with a significant wind threat, will continue through tonight across the northern Plains. Wind gusts of 60 to 100 mph are possible. Heavy rainfall will continue through tonight from Oklahoma into Missouri, then pushing into the Tennessee Valley on Monday. Critical fire weather conditions continue in the Southwest through Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Mount Carmel, Mount Carmel Municipal Airport (KAJG)

Lat: 38.61°NLon: 87.73°WElev: 423ft.

Fair

89°F

32°C

Humidity 50%
Wind Speed SE 7 mph
Barometer 29.90 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 7 Jun 5:35 pm CDT
Extended Forecast for

Sumner IL

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 74. South southeast wind 6 to 8 mph.

    Low: 74 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7am. Mostly cloudy, with a high near 85. South southeast wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 85 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 4am, then a chance of showers and thunderstorms after 4am. Low around 72. South wind 8 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 72 °F

    Showers

  • Tuesday

    Tuesday: Showers likely, with thunderstorms also possible after 1pm. Partly sunny, with a high near 89. South southwest wind 8 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75. South southwest wind around 9 mph, with gusts as high as 15 mph.

    Low: 75 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Sunny, with a high near 92. Southwest wind 9 to 14 mph, with gusts as high as 20 mph.

    High: 92 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 77. South wind 11 to 13 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 93. Chance of precipitation is 40%.

    High: 93 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Partly cloudy, with a low around 72. Chance of precipitation is 60%.

    Low: 72 °F

    Showers
    Likely

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 74. South southeast wind 6 to 8 mph.
Monday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7am. Mostly cloudy, with a high near 85. South southeast wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 4am, then a chance of showers and thunderstorms after 4am. Low around 72. South wind 8 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
Showers likely, with thunderstorms also possible after 1pm. Partly sunny, with a high near 89. South southwest wind 8 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75. South southwest wind around 9 mph, with gusts as high as 15 mph.
Wednesday
Sunny, with a high near 92. Southwest wind 9 to 14 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 77. South wind 11 to 13 mph, with gusts as high as 20 mph.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 93. Chance of precipitation is 40%.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Partly cloudy, with a low around 72. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 69.
Saturday
Mostly sunny, with a high near 90.
Saturday Night
A chance of showers. Partly cloudy, with a low around 70.
Sunday
Partly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sumner IL
 38.72°N 87.87°W (Elev. 479 ft)
Last Update:
1:26 pm CDT Jun 7, 2026
Forecast Valid:
5pm CDT Jun 7, 2026-6pm CDT Jun 14, 2026
 
Forecast Discussion
 
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Additional Resources

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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