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

Lansing Municipal Airport (KIGQ)

Lat: 41.54°NLon: 87.53°WElev: 607ft.

Fair

46°F

8°C

Humidity 54%
Wind Speed S 9 mph
Barometer 30.11 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 21 Apr 2:15 am CDT
Extended Forecast for

Thornton IL

  • Overnight

    Overnight: Partly cloudy, with a low around 46. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 46 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 77. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 77 °F

    Breezy.
    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 53. Southwest wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 15 mph.

    Low: 53 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 72. North wind around 5 mph becoming west northwest in the morning.

    High: 72 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 56. East northeast wind around 5 mph becoming south after midnight. Winds could gust as high as 10 mph.

    Low: 56 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 61. Chance of precipitation is 40%.

    Low: 61 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 75.

    High: 75 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 46. South wind around 10 mph, with gusts as high as 20 mph.
Tuesday
A 40 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 77. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 53. Southwest wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 15 mph.
Wednesday
Mostly sunny, with a high near 72. North wind around 5 mph becoming west northwest in the morning.
Wednesday Night
Partly cloudy, with a low around 56. East northeast wind around 5 mph becoming south after midnight. Winds could gust as high as 10 mph.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 61. Chance of precipitation is 40%.
Friday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 75.
Friday Night
Mostly cloudy, with a low around 49.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Mostly sunny, with a high near 65.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 50.
Monday
A chance of showers. Mostly cloudy, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Thornton IL
 41.57°N 87.61°W
Last Update:
2:05 am CDT Apr 21, 2026
Forecast Valid:
2am CDT Apr 21, 2026-6pm CDT Apr 27, 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