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

Hazardous Weather Conditions

Current conditions at

Aurora Municipal Airport (KARR)

Lat: 41.77°NLon: 88.48°WElev: 696ft.

Mostly Cloudy

74°F

23°C

Humidity 97%
Wind Speed Calm
Barometer 29.94 in (1013.2 mb)
Dewpoint 73°F (23°C)
Visibility 7.00 mi
Last update 3 Sep 12:52 am CDT
Extended Forecast for

Big Rock IL

Heat Advisory September 3, 01:16am until September 3, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 3, 01:16am until September 3, 07:00pm

    NOW until 7:00pm Thu

    Heat Advisory

  • Overnight

    Low: 74 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 90. Heat index values as high as 99. Southwest wind 5 to 10 mph.

    High: 90 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms after midnight. Partly cloudy, with a low around 71. Southeast wind around 5 mph. Chance of precipitation is 40%.

    Low: 71 °F

    Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 89. Heat index values as high as 98. East southeast wind around 5 mph becoming southwest in the afternoon.

    High: 89 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Partly cloudy, with a low around 70. East southeast wind around 5 mph becoming calm. Chance of precipitation is 40%.

    Low: 70 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.

    High: 86 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 74. South southwest wind around 5 mph, with gusts as high as 10 mph.
Thursday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 90. Heat index values as high as 99. Southwest wind 5 to 10 mph.
Thursday Night
A slight chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms after midnight. Partly cloudy, with a low around 71. Southeast wind around 5 mph. Chance of precipitation is 40%.
Friday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 89. Heat index values as high as 98. East southeast wind around 5 mph becoming southwest in the afternoon.
Friday Night
A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Partly cloudy, with a low around 70. East southeast wind around 5 mph becoming calm. Chance of precipitation is 40%.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Saturday Night
Partly cloudy, with a low around 67.
Sunday
Mostly sunny, with a high near 84.
Sunday Night
Partly cloudy, with a low around 65.
Labor Day
Mostly sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Partly sunny, with a high near 83.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 68.
Wednesday
Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Big Rock IL
 41.76°N 88.53°W
Last Update:
1:11 am CDT Sep 3, 2026
Forecast Valid:
1am CDT Sep 3, 2026-6pm CDT Sep 9, 2026
 
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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