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.

Fog

34°F

1°C

Humidity 94%
Wind Speed E 6 mph
Barometer 30.22 in
Dewpoint 32°F (0°C)
Visibility 0.25 mi
Wind Chill29°F (-2°C)
Last update 4 Mar 2:55 am CST
Extended Forecast for

De Kalb IL

Dense Fog Advisory March 4, 03:09am until March 4, 09:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory March 4, 03:09am until March 4, 09:00am

    NOW until 9:00am Wed

    Dense Fog Advisory

  • Overnight

    Low: 32 °F

    Areas Fog

  • Wednesday

    Wednesday: A 20 percent chance of showers after 3pm. Areas of fog before 9am. Otherwise, mostly cloudy, with a high near 48. East wind 5 to 10 mph.

    High: 48 °F

    Areas Fog
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 3am. Patchy fog after 9pm. Otherwise, cloudy, with a low around 40. East northeast wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Showers
    Likely and
    Patchy Fog

  • Thursday

    Thursday: Showers likely, mainly before noon. Areas of fog. Otherwise, cloudy, with a high near 50. Northeast wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 70%.

    High: 50 °F

    Showers
    Likely and
    Areas Fog

  • Thursday Night

    Thursday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 43. Southeast wind 5 to 10 mph.

    Low: 43 °F

    Patchy Fog

  • Friday

    Friday: A chance of showers before 9am, then showers and possibly a thunderstorm between 9am and 3pm, then a chance of showers and thunderstorms after 3pm. Patchy fog before noon. High near 70. Chance of precipitation is 80%.

    High: 70 °F

    Showers and
    Patchy Fog

  • Friday Night

    Friday Night: A slight chance of showers, then showers and possibly a thunderstorm after 9pm. Low around 47. Breezy. Chance of precipitation is 90%.

    Low: 47 °F

    Showers and
    Breezy

  • Saturday

    Saturday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

Detailed Forecast

Overnight
Areas of fog. Otherwise, cloudy, with a low around 32. East northeast wind around 5 mph, with gusts as high as 10 mph.
Wednesday
A 20 percent chance of showers after 3pm. Areas of fog before 9am. Otherwise, mostly cloudy, with a high near 48. East wind 5 to 10 mph.
Wednesday Night
Showers likely, mainly after 3am. Patchy fog after 9pm. Otherwise, cloudy, with a low around 40. East northeast wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Showers likely, mainly before noon. Areas of fog. Otherwise, cloudy, with a high near 50. Northeast wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 70%.
Thursday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 43. Southeast wind 5 to 10 mph.
Friday
A chance of showers before 9am, then showers and possibly a thunderstorm between 9am and 3pm, then a chance of showers and thunderstorms after 3pm. Patchy fog before noon. High near 70. Chance of precipitation is 80%.
Friday Night
A slight chance of showers, then showers and possibly a thunderstorm after 9pm. Low around 47. Breezy. Chance of precipitation is 90%.
Saturday
Partly sunny, with a high near 56.
Saturday Night
Mostly clear, with a low around 34.
Sunday
Mostly sunny, with a high near 60. Breezy.
Sunday Night
Mostly clear, with a low around 42.
Monday
Sunny, with a high near 69.
Monday Night
A chance of showers. Mostly clear, with a low around 53.
Tuesday
Showers likely. Mostly cloudy, with a high near 69. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
De Kalb IL
 41.92°N 88.76°W
Last Update:
2:51 am CST Mar 4, 2026
Forecast Valid:
3am CST Mar 4, 2026-6pm CDT Mar 10, 2026
 
Forecast Discussion
 
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Additional Resources

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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