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

Hazardous Weather Conditions

Current conditions at

Rochelle, Rochelle Municipal-Koritz Field Airport (KRPJ)

Lat: 41.89°NLon: 89.08°WElev: 768ft.

Light Snow and Breezy

32°F

0°C

Humidity 90%
Wind Speed N 21 G 32 mph
Barometer 29.37 in
Dewpoint 29°F (-2°C)
Visibility 5.00 mi
Wind Chill20°F (-7°C)
Last update 15 Mar 8:35 pm CDT
Extended Forecast for

De Kalb IL

Blizzard Warning March 15, 10:00pm until March 16, 01:00pm
Click here for hazard details and duration
Blizzard Warning

  • Tonight

    Tonight: Rain before 9pm, then freezing rain and sleet, possibly mixed with rain between 9pm and 10pm, then snow after 10pm. Widespread blowing snow after 1am. Low around 20. Windy, with a northwest wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. Total nighttime snow and sleet accumulation of 2 to 4 inches possible.

    Low: 20 °F

    Wintry Mix
    and Blustery
    then Snow and
    Blowing Snow

  • Monday

    Monday: Snow, mainly before 1pm. Widespread blowing snow, mainly before 1pm. Temperature falling to around 19 by 5pm. Wind chill values as low as 1. Windy, with a northwest wind around 30 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    High: 22 °F⇓

    Snow and
    Blowing Snow

  • Monday Night

    Monday Night: Patchy blowing snow before 7pm. Cloudy, then gradually becoming partly cloudy, with a low around 6. Wind chill values as low as -8. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 6 °F

    Patchy
    Blowing Snow
    and Blustery
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 22. Wind chill values as low as -9. West northwest wind around 10 mph, with gusts as high as 20 mph.

    High: 22 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 17. South southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

    Low: 17 °F

    Snow Showers
    Likely

  • Wednesday

    Wednesday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Rain before 9pm, then freezing rain and sleet, possibly mixed with rain between 9pm and 10pm, then snow after 10pm. Widespread blowing snow after 1am. Low around 20. Windy, with a northwest wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. Total nighttime snow and sleet accumulation of 2 to 4 inches possible.
Monday
Snow, mainly before 1pm. Widespread blowing snow, mainly before 1pm. Temperature falling to around 19 by 5pm. Wind chill values as low as 1. Windy, with a northwest wind around 30 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Monday Night
Patchy blowing snow before 7pm. Cloudy, then gradually becoming partly cloudy, with a low around 6. Wind chill values as low as -8. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday
Mostly sunny, with a high near 22. Wind chill values as low as -9. West northwest wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 17. South southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Wednesday
Partly sunny, with a high near 41.
Wednesday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 31.
Thursday
Mostly sunny, with a high near 51.
Thursday Night
Mostly cloudy, with a low around 34.
Friday
Partly sunny, with a high near 61.
Friday Night
Mostly cloudy, with a low around 39.
Saturday
Sunny, with a high near 60.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
Partly sunny, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
De Kalb IL
 41.92°N 88.76°W
Last Update:
8:16 pm CDT Mar 15, 2026
Forecast Valid:
8pm CDT Mar 15, 2026-6pm CDT Mar 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation