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

Hazardous Weather Conditions

Current conditions at

Lansing Municipal Airport (KIGQ)

Lat: 41.54°NLon: 87.53°WElev: 607ft.

Fog/Mist

47°F

8°C

Humidity 100%
Wind Speed Calm
Barometer 29.93 in
Dewpoint 47°F (8°C)
Visibility 0.75 mi
Last update 17 Apr 5:15 am CDT
Extended Forecast for

Thornton IL

Dense Fog Advisory April 17, 05:37am until April 17, 10:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory April 17, 05:37am until April 17, 10:00am

    NOW until 10:00am Fri

    Dense Fog Advisory

  • Today

    High: 81 °F

    Dense Fog
    then Mostly
    Sunny and
    Breezy

  • Tonight

    Tonight: Showers and thunderstorms before 3am, then showers likely. Some of the storms could produce heavy rainfall. Low around 46. Breezy, with a south wind 15 to 20 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    Low: 46 °F

    Heavy Rain
    and Breezy
    then Heavy
    Rain

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 52. West northwest wind around 15 mph, with gusts as high as 25 mph.

    High: 52 °F

    Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36. West northwest wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 51. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 51 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Areas of frost after 3am. Otherwise, mostly clear, with a low around 35.

    Low: 35 °F

    Partly Cloudy
    then Areas
    Frost

  • Monday

    Monday: Areas of frost before 8am. Otherwise, sunny, with a high near 56.

    High: 56 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

Detailed Forecast

Today
Widespread dense fog, mainly before 8am. Otherwise, mostly sunny, with a high near 81. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Tonight
Showers and thunderstorms before 3am, then showers likely. Some of the storms could produce heavy rainfall. Low around 46. Breezy, with a south wind 15 to 20 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Saturday
A 30 percent chance of showers, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 52. West northwest wind around 15 mph, with gusts as high as 25 mph.
Saturday Night
Mostly clear, with a low around 36. West northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 51. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Areas of frost after 3am. Otherwise, mostly clear, with a low around 35.
Monday
Areas of frost before 8am. Otherwise, sunny, with a high near 56.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
Partly cloudy, with a low around 53.
Wednesday
Mostly sunny, with a high near 73.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Partly sunny, with a high near 79.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Thornton IL
 41.57°N 87.61°W
Last Update:
4:45 am CDT Apr 17, 2026
Forecast Valid:
5am CDT Apr 17, 2026-6pm CDT Apr 23, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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