Severe Thunderstorms and Heavy Rain in the Central Plains; Dry Thunderstorms and Critical Fire Weather in the West

Severe thunderstorms and heavy rain may produce large to very-large hail, severe winds, tornadoes and numerous instances of flash flooding across portions of the central Plains. Scattered slow-moving storms will continue to bring a flash flooding threat to the central Gulf Coast. Elevated to critical fire weather conditions are expected across much of the western U.S.. Read More >

Current conditions at

De Kalb Taylor Municipal Airport (KDKB)

Lat: 41.93°NLon: 88.71°WElev: 909ft.

Fair

57°F

14°C

Humidity 90%
Wind Speed W 8 mph
Barometer 29.98 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 20 Jun 4:55 am CDT
Extended Forecast for

Marengo IL

  • Today

    Today: Sunny, with a high near 77. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 56. Northwest wind around 5 mph becoming calm  in the evening. Winds could gust as high as 15 mph.

    Low: 56 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers likely, mainly after 1pm.  Mostly cloudy, with a high near 71. Light northeast wind becoming east 10 to 15 mph in the morning. Winds could gust as high as 20 mph.  Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 71 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely, mainly before 1am.  Mostly cloudy, with a low around 55. East northeast wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 70%.

    Low: 55 °F

    Showers
    Likely

  • Monday

    Monday: Mostly sunny, with a high near 74. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 74 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 1am.  Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm.  Mostly sunny, with a high near 76.

    High: 76 °F

    Showers
    Likely

Detailed Forecast

Today
Sunny, with a high near 77. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 56. Northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph.
Sunday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 71. Light northeast wind becoming east 10 to 15 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 55. East northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Monday
Mostly sunny, with a high near 74. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 51.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
A chance of showers after 1am. Partly cloudy, with a low around 56.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 55.
Thursday
A chance of showers. Mostly sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Marengo IL
 42.24°N 88.62°W
4:16 am CDT Jun 20, 2026
5am CDT Jun 20, 2026-6pm CDT Jun 26, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database