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/Mist

65°F

18°C

Humidity 94%
Wind Speed NE 14 mph
Barometer 30.13 in
Dewpoint 63°F (17°C)
Visibility 5.00 mi
Last update 31 Jul 2:15 am CDT
Extended Forecast for

Harmon IL

  • Overnight

    Overnight: A 40 percent chance of showers, mainly before 4am. Cloudy, with a low around 64. Northeast wind around 15 mph, with gusts as high as 25 mph.

    Low: 64 °F

    Chance
    Showers

  • Thursday

    Thursday: A 10 percent chance of showers before 7am. Patchy smoke. Mostly cloudy, then gradually becoming sunny, with a high near 76. Northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 76 °F

    Slight Chance
    Showers then
    Patchy Smoke

  • Thursday Night

    Thursday Night: Patchy smoke before 1am. Mostly clear, with a low around 55. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 55 °F

    Patchy Smoke

  • Friday

    Friday: Sunny, with a high near 77. East northeast wind around 10 mph.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 52. East northeast wind around 5 mph.

    Low: 52 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 40 percent chance of showers, mainly before 4am. Cloudy, with a low around 64. Northeast wind around 15 mph, with gusts as high as 25 mph.
Thursday
A 10 percent chance of showers before 7am. Patchy smoke. Mostly cloudy, then gradually becoming sunny, with a high near 76. Northeast wind around 15 mph, with gusts as high as 25 mph.
Thursday Night
Patchy smoke before 1am. Mostly clear, with a low around 55. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Friday
Sunny, with a high near 77. East northeast wind around 10 mph.
Friday Night
Mostly clear, with a low around 52. East northeast wind around 5 mph.
Saturday
Sunny, with a high near 79.
Saturday Night
Partly cloudy, with a low around 56.
Sunday
Mostly sunny, with a high near 79.
Sunday Night
Partly cloudy, with a low around 59.
Monday
Partly sunny, with a high near 80.
Monday Night
Partly cloudy, with a low around 61.
Tuesday
A chance of showers. Mostly sunny, with a high near 82.
Tuesday Night
Mostly clear, with a low around 63.
Wednesday
Mostly sunny, with a high near 84.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harmon IL
 41.73°N 89.56°W
Last Update:
1:41 am CDT Jul 31, 2025
Forecast Valid:
2am CDT Jul 31, 2025-6pm CDT Aug 6, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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