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.

Overcast

22°F

-6°C

Humidity 81%
Wind Speed S 13 mph
Barometer 30.10 in
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill10°F (-12°C)
Last update 18 Mar 12:35 am CDT
Extended Forecast for

De Kalb IL

  • Overnight

    Overnight: Snow. Temperature rising to around 23 by 5am. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 1 to 2 inches possible.

    Low: 19 °F⇑

    Snow

  • Wednesday

    Wednesday: A 30 percent chance of snow before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 38. South southeast wind around 10 mph becoming west southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 38 °F

    Chance Snow
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers after 1am. Increasing clouds, with a low around 32. South southwest wind around 5 mph, with gusts as high as 10 mph.

    Low: 32 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 47. South wind around 5 mph becoming north in the afternoon. Winds could gust as high as 10 mph.

    High: 47 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 34. North northeast wind around 5 mph becoming south after midnight. Winds could gust as high as 10 mph.

    Low: 34 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 57.

    High: 57 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Overnight
Snow. Temperature rising to around 23 by 5am. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 1 to 2 inches possible.
Wednesday
A 30 percent chance of snow before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 38. South southeast wind around 10 mph becoming west southwest in the afternoon. Winds could gust as high as 15 mph.
Wednesday Night
A 30 percent chance of showers after 1am. Increasing clouds, with a low around 32. South southwest wind around 5 mph, with gusts as high as 10 mph.
Thursday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 47. South wind around 5 mph becoming north in the afternoon. Winds could gust as high as 10 mph.
Thursday Night
Mostly cloudy, with a low around 34. North northeast wind around 5 mph becoming south after midnight. Winds could gust as high as 10 mph.
Friday
Mostly cloudy, with a high near 57.
Friday Night
Mostly cloudy, with a low around 39.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
Partly sunny, with a high near 61.
Sunday Night
Mostly clear, with a low around 28.
Monday
Partly sunny, with a high near 43.
Monday Night
Mostly cloudy, with a low around 27.
Tuesday
Mostly cloudy, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
De Kalb IL
 41.92°N 88.76°W
Last Update:
8:51 pm CDT Mar 17, 2026
Forecast Valid:
12am CDT Mar 18, 2026-6pm CDT Mar 24, 2026
 
Forecast Discussion
 
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Additional Resources

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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