Severe Thunderstorms in the Central U.S.; Heavy to Excessive Rainfall in the Ohio Valley and Central Appalachians

Severe thunderstorms producing damaging winds, hail, and a few tornadoes are expected through Tuesday across parts of the central Plains and lower to mid Missouri Valley. Heavy to excessive rainfall could produce flooding across portions of the Ohio Valley into the Central Appalachians through Tuesday. Read More >

Current conditions at

De Kalb Taylor Municipal Airport (KDKB)

Lat: 41.93°NLon: 88.71°WElev: 909ft.

Fair

72°F

22°C

Humidity 79%
Wind Speed W 5 mph
Barometer 29.89 in
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 16 Jun 11:35 pm CDT
Extended Forecast for

Marengo IL

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 70. South southwest wind around 5 mph, with gusts as high as 10 mph.

    Low: 70 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers, then showers and thunderstorms likely after 1pm.  Partly sunny, with a high near 87. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Slight Chance
    Showers then
    T-storms
    Likely

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 10pm.  Low around 66. West wind around 5 mph becoming south southwest after midnight. Winds could gust as high as 15 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    T-storms

  • Wednesday

    Wednesday: Showers, with thunderstorms also possible after 10am.  High near 79. South wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 90%.

    High: 79 °F

    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers.  Partly cloudy, with a low around 60. Southwest wind 5 to 10 mph becoming west northwest after midnight. Winds could gust as high as 15 mph.  Chance of precipitation is 40%.

    Low: 60 °F

    Chance
    T-storms then
    Chance
    Showers

  • Juneteenth

    Juneteenth: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms.  Mostly clear, with a low around 62.

    Low: 62 °F

    Slight Chance
    T-storms

  • Friday

    Friday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 70. South southwest wind around 5 mph, with gusts as high as 10 mph.
Tuesday
A slight chance of showers, then showers and thunderstorms likely after 1pm. Partly sunny, with a high near 87. West southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 10pm. Low around 66. West wind around 5 mph becoming south southwest after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers, with thunderstorms also possible after 10am. High near 79. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Wednesday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 60. Southwest wind 5 to 10 mph becoming west northwest after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 40%.
Juneteenth
Sunny, with a high near 82.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 62.
Friday
Mostly sunny, with a high near 85.
Friday Night
Partly cloudy, with a low around 68.
Saturday
Mostly sunny, with a high near 92.
Saturday Night
Mostly clear, with a low around 74.
Sunday
Sunny, with a high near 92.
Sunday Night
Mostly clear, with a low around 73.
Monday
Sunny, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
Marengo IL
 42.24°N 88.62°W
9:56 pm CDT Jun 16, 2025
12am CDT Jun 17, 2025-6pm CDT Jun 23, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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