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.

Overcast

25°F

-4°C

Humidity 70%
Wind Speed NE 6 mph
Barometer 30.33 in
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 4 Feb 2:15 am CST
Extended Forecast for

Thornton IL

  • Overnight

    Overnight: A slight chance of flurries between 4am and 5am. Mostly cloudy, with a low around 20. North wind around 5 mph.

    Low: 20 °F

    Slight Chance
    Flurries

  • Wednesday

    Wednesday: Partly sunny, with a high near 26. North wind around 5 mph becoming east northeast in the morning.

    High: 26 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 13. Calm wind becoming southwest around 5 mph after midnight.

    Low: 13 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A 20 percent chance of snow before noon. Mostly cloudy, with a high near 31. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 31 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Thursday Night

    Thursday Night: A chance of snow after midnight, mixing with sleet after 3am. Mostly cloudy, with a low around 26. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    Low: 26 °F

    Mostly Cloudy
    then Chance
    Snow/Sleet

  • Friday

    Friday: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 39.

    High: 39 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Friday Night

    Friday Night: Partly cloudy, with a low around 14.

    Low: 14 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A slight chance of flurries between 4am and 5am. Mostly cloudy, with a low around 20. North wind around 5 mph.
Wednesday
Partly sunny, with a high near 26. North wind around 5 mph becoming east northeast in the morning.
Wednesday Night
Increasing clouds, with a low around 13. Calm wind becoming southwest around 5 mph after midnight.
Thursday
A 20 percent chance of snow before noon. Mostly cloudy, with a high near 31. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday Night
A chance of snow after midnight, mixing with sleet after 3am. Mostly cloudy, with a low around 26. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Friday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 39.
Friday Night
Partly cloudy, with a low around 14.
Saturday
Mostly sunny, with a high near 27.
Saturday Night
Mostly cloudy, with a low around 20.
Sunday
Partly sunny, with a high near 31.
Sunday Night
Partly cloudy, with a low around 17.
Monday
Mostly sunny, with a high near 34.
Monday Night
Mostly cloudy, with a low around 24.
Tuesday
Partly sunny, with a high near 41.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Thornton IL
 41.57°N 87.61°W
Last Update:
9:36 pm CST Feb 3, 2026
Forecast Valid:
2am CST Feb 4, 2026-6pm CST Feb 10, 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