Severe Thunderstorms and Heavy Rain in the Southern U.S.; Snow in the Northern Rockies and Northern Plains

A storm system will shift from eastern Texas into the lower Mississippi Valley today with additional threats of severe thunderstorms and heavy to excessive rainfall which may bring flooding. In the northern U.S., a storm will bring heavy snow and gusty winds over parts of the northern Rockies, northern Plains, and Upper Midwest today into Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

De Kalb Taylor Municipal Airport (KDKB)

Lat: 41.93°NLon: 88.71°WElev: 909ft.

Fair

44°F

7°C

Humidity 92%
Wind Speed S 16 mph
Barometer 30.07 in
Dewpoint 42°F (6°C)
Visibility 7.00 mi
Wind Chill37°F (3°C)
Last update 24 Nov 10:55 am CST
Extended Forecast for

Marengo IL

  • Today

    Today: A 20 percent chance of rain after 3pm.  Areas of fog before 3pm.  Otherwise, cloudy, with a high near 47. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 47 °F

    Slight Chance
    Rain and
    Areas Fog

  • Tonight

    Tonight: Rain likely, mainly after 3am.  Patchy fog after 9pm.  Otherwise, cloudy, with a low around 44. South wind around 5 mph becoming calm  after midnight. Winds could gust as high as 10 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 44 °F

    Chance Rain
    and Patchy
    Fog then Rain
    Likely and
    Patchy Fog

  • Tuesday

    Tuesday: Areas of drizzle and fog before noon, then a chance of showers after 3pm.  Cloudy, with a high near 52. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.  Chance of precipitation is 30%.

    High: 52 °F

    Chance
    Showers and
    Areas Fog

  • Tuesday Night

    Tuesday Night: Showers likely before midnight.  Mostly cloudy, with a low around 32. Breezy, with a west wind 10 to 15 mph increasing to 20 to 25 mph after midnight. Winds could gust as high as 35 mph.  Chance of precipitation is 60%.

    Low: 32 °F

    Showers
    Likely then
    Mostly Cloudy
    and Breezy

  • Wednesday

    Wednesday: A slight chance of snow showers before noon, then a chance of flurries after noon.  Mostly cloudy, with a high near 35. Windy, with a west wind 25 to 30 mph, with gusts as high as 45 mph.  Chance of precipitation is 20%.

    High: 35 °F

    Windy. Slight
    Chance Snow
    Showers then
    Chance
    Flurries

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 22. Breezy.

    Low: 22 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Thanksgiving Day

    Thanksgiving Day: Mostly sunny, with a high near 32. Breezy.

    High: 32 °F

    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 17.

    Low: 17 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

Detailed Forecast

Today
A 20 percent chance of rain after 3pm. Areas of fog before 3pm. Otherwise, cloudy, with a high near 47. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Tonight
Rain likely, mainly after 3am. Patchy fog after 9pm. Otherwise, cloudy, with a low around 44. South wind around 5 mph becoming calm after midnight. Winds could gust as high as 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Areas of drizzle and fog before noon, then a chance of showers after 3pm. Cloudy, with a high near 52. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Chance of precipitation is 30%.
Tuesday Night
Showers likely before midnight. Mostly cloudy, with a low around 32. Breezy, with a west wind 10 to 15 mph increasing to 20 to 25 mph after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 60%.
Wednesday
A slight chance of snow showers before noon, then a chance of flurries after noon. Mostly cloudy, with a high near 35. Windy, with a west wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 22. Breezy.
Thanksgiving Day
Mostly sunny, with a high near 32. Breezy.
Thursday Night
Partly cloudy, with a low around 17.
Friday
Mostly sunny, with a high near 31.
Friday Night
A chance of snow after midnight. Mostly cloudy, with a low around 21.
Saturday
Snow likely. Cloudy, with a high near 32.
Saturday Night
Snow likely. Cloudy, with a low around 27.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 34.
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ABOUT THIS FORECAST

 
Point Forecast:
Marengo IL
 42.24°N 88.62°W
10:51 am CST Nov 24, 2025
11am CST Nov 24, 2025-6pm CST Nov 30, 2025
 
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Additional Resources

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Hourly Weather Forecast

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