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

Severe Thunderstorms in the Southern Plains; Heavy to Excessive Rainfall in South Central Texas

Widespread rain may produce flash flooding across the Southern Plains into the Ozarks today. Numerous instances of flash flooding are expected in south-central Texas, including the Hill Country. There will also be a risk of isolated severe thunderstorms across the southern Plains today, where an instance or two of severe wind, hail, or a brief tornado may occur. Read More >

Current conditions at

De Kalb Taylor Municipal Airport (KDKB)

Lat: 41.93°NLon: 88.71°WElev: 909ft.

Fog/Mist

45°F

7°C

Humidity 100%
Wind Speed SW 8 mph
Barometer 30.03 in
Dewpoint 45°F (7°C)
Visibility 5.00 mi
Wind Chill41°F (5°C)
Last update 20 Nov 2:15 pm CST
Extended Forecast for

Marengo IL

  • This Afternoon

    This Afternoon: Patchy drizzle. Cloudy, with a high near 46. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 46 °F

    Patchy
    Drizzle

  • Tonight

    Tonight: Patchy drizzle before 2am. Patchy fog after 9pm. Otherwise, cloudy, with a low around 39. Southwest wind around 5 mph becoming north northwest after midnight. Winds could gust as high as 15 mph.

    Low: 39 °F

    Patchy
    Drizzle and
    Patchy Fog

  • Friday

    Friday: Mostly cloudy, with a high near 46. North northwest wind 5 to 10 mph.

    High: 46 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Cloudy during the early evening, then gradual clearing, with a low around 27. North wind around 5 mph becoming calm in the evening.

    Low: 27 °F

    Gradual
    Clearing

  • Saturday

    Saturday: Mostly sunny, with a high near 49. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 49 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Monday

    Monday: A chance of rain after noon. Mostly cloudy, with a high near 53.

    High: 53 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

This Afternoon
Patchy drizzle. Cloudy, with a high near 46. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Tonight
Patchy drizzle before 2am. Patchy fog after 9pm. Otherwise, cloudy, with a low around 39. Southwest wind around 5 mph becoming north northwest after midnight. Winds could gust as high as 15 mph.
Friday
Mostly cloudy, with a high near 46. North northwest wind 5 to 10 mph.
Friday Night
Cloudy during the early evening, then gradual clearing, with a low around 27. North wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 49. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 34.
Sunday
Sunny, with a high near 56.
Sunday Night
Partly cloudy, with a low around 35.
Monday
A chance of rain after noon. Mostly cloudy, with a high near 53.
Monday Night
Rain. Cloudy, with a low around 44.
Tuesday
A chance of rain. Mostly cloudy, with a high near 54.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
Partly sunny, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marengo IL
 42.24°N 88.62°W
Last Update:
1:41 pm CST Nov 20, 2025
Forecast Valid:
2pm CST Nov 20, 2025-6pm CST Nov 26, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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