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

23°F

-5°C

Humidity 68%
Wind Speed S 16 mph
Barometer 29.93 in
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill10°F (-12°C)
Last update 9 Dec 3:55 am CST
Extended Forecast for

Thornton IL

  • Overnight

    Overnight: A 50 percent chance of snow, mainly before 4am. Mostly cloudy, with a steady temperature around 23. South southwest wind around 15 mph, with gusts as high as 30 mph.

    Low: 23 °F

    Chance Snow

  • Tuesday

    Tuesday: Cloudy, with a high near 36. West southwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 36 °F

    Cloudy

  • Tuesday Night

    Tuesday Night: A chance of rain and sleet before 7pm, then rain. Low around 33. Breezy, with a south southwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. Little or no sleet accumulation expected.

    Low: 33 °F

    Breezy.
    Rain/Sleet
    then Rain

  • Wednesday

    Wednesday: Snow showers, mainly before noon. High near 36. Breezy, with a northwest wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 36 °F

    Breezy. Snow
    Showers then
    Chance Snow
    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 17. West northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 17 °F

    Chance Snow
    then Mostly
    Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after noon. Partly sunny, with a high near 25.

    High: 25 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 16.

    Low: 16 °F

    Chance Snow

  • Friday

    Friday: A chance of snow. Mostly cloudy, with a high near 28.

    High: 28 °F

    Chance Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 6.

    Low: 6 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 50 percent chance of snow, mainly before 4am. Mostly cloudy, with a steady temperature around 23. South southwest wind around 15 mph, with gusts as high as 30 mph.
Tuesday
Cloudy, with a high near 36. West southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Tuesday Night
A chance of rain and sleet before 7pm, then rain. Low around 33. Breezy, with a south southwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. Little or no sleet accumulation expected.
Wednesday
Snow showers, mainly before noon. High near 36. Breezy, with a northwest wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 17. West northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday
A 20 percent chance of snow after noon. Partly sunny, with a high near 25.
Thursday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 16.
Friday
A chance of snow. Mostly cloudy, with a high near 28.
Friday Night
Mostly cloudy, with a low around 6.
Saturday
A chance of snow. Mostly cloudy, with a high near 12.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 0.
Sunday
Mostly sunny, with a high near 12.
Sunday Night
Partly cloudy, with a low around 2.
Monday
Mostly cloudy, with a high near 22.
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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:
2:51 am CST Dec 9, 2025
Forecast Valid:
3am CST Dec 9, 2025-6pm CST Dec 15, 2025
 
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Additional Resources

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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