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

Aurora Municipal Airport (KARR)

Lat: 41.77°NLon: 88.48°WElev: 696ft.

Fair

N/A

Humidity NA
Wind Speed Calm
Barometer 30.07 in
Dewpoint N/A
Visibility 10.00 mi
Last update 30 Jul 5:52 am CDT
Extended Forecast for

Oswego IL

  • Today

    Today: Patchy fog before 8am. Otherwise, sunny, with a high near 85. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 85 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 63. South wind around 5 mph becoming calm in the evening.

    Low: 63 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Increasing clouds, with a high near 77. Light south southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 15 mph. Chance of precipitation is 40%.

    High: 77 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 7pm, then rain and possibly a thunderstorm between 7pm and 1am, then rain after 1am. Some of the storms could produce heavy rainfall. Low around 65. Southeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 90%.

    Low: 65 °F

    Heavy Rain

  • Saturday

    Saturday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 75. Northeast wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 75 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

Detailed Forecast

Today
Patchy fog before 8am. Otherwise, sunny, with a high near 85. Calm wind becoming south southwest around 5 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 63. South wind around 5 mph becoming calm in the evening.
Friday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Increasing clouds, with a high near 77. Light south southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 15 mph. Chance of precipitation is 40%.
Friday Night
Showers likely and possibly a thunderstorm before 7pm, then rain and possibly a thunderstorm between 7pm and 1am, then rain after 1am. Some of the storms could produce heavy rainfall. Low around 65. Southeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 90%.
Saturday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 75. Northeast wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Saturday Night
Partly cloudy, with a low around 62.
Sunday
Sunny, with a high near 80.
Sunday Night
Mostly clear, with a low around 60.
Monday
Sunny, with a high near 83.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Sunny, with a high near 85.
Tuesday Night
Mostly clear, with a low around 66.
Wednesday
Mostly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
Oswego IL
 41.71°N 88.33°W
Last Update:
3:36 am CDT Jul 30, 2026
Forecast Valid:
6am CDT Jul 30, 2026-6pm CDT Aug 5, 2026
 
Forecast Discussion
 
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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