News Headlines
- This week is Severe Weather Preparedness Week in Illinois! Click here for more details and safety info!
- February 2026 and Meteorological Winter 2025-26 Climate Summaries
- Spring Seminars and Virtual Spotter Training: Click Here for More Information!
- Spring Flood Outlook: Below average to near average flood risk for area river basins
Hazardous Weather Conditions
Current conditions at
Lansing Municipal Airport (KIGQ)
Lat: 41.54°NLon: 87.53°WElev: 607ft.
Fog/Mist
48°F
9°C
| Humidity | 91% |
| Wind Speed | NE 3 mph |
| Barometer | 30.02 in |
| Dewpoint | 45°F (7°C) |
| Visibility | 4.00 mi |
| Last update | 5 Mar 4:35 pm CST |
Extended Forecast for
Thornton IL
Tonight

Low: 43 °F
Patchy Fog
Friday

High: 71 °F
Chance
T-storms and
Areas FogFriday Night
Low: 61 °F
Breezy.
Slight Chance
T-storms then
ShowersSaturday
High: 63 °F
Breezy.
Chance
Showers then
Partly SunnySaturday Night

Low: 37 °F
Partly Cloudy
Sunday

High: 61 °F
Sunny
Sunday Night

Low: 47 °F
Clear
Monday

High: 71 °F
Sunny
Monday Night

Low: 50 °F
Partly Cloudy
Detailed Forecast
Tonight
Patchy fog. Otherwise, mostly cloudy, with a low around 43. North northeast wind around 5 mph becoming calm.
Friday
A 50 percent chance of showers and thunderstorms, mainly before 3pm. Areas of fog before noon. Otherwise, mostly cloudy, with a high near 71. Breezy, with a southeast wind 5 to 10 mph becoming south southwest 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 61. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers and thunderstorms before 9am, then a slight chance of showers between 9am and noon. Mostly cloudy, with a high near 63. Breezy, with a southwest wind 10 to 20 mph becoming west northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 37. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday
Sunny, with a high near 61.
Sunday Night
Clear, with a low around 47.
Monday
Sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 50.
Tuesday
Showers likely, mainly after noon. Partly sunny, with a high near 72.
Tuesday Night
Showers. Mostly cloudy, with a low around 47.
Wednesday
Showers likely. Mostly cloudy, with a high near 57.
Wednesday Night
Partly cloudy, with a low around 30.
Thursday
Mostly sunny, with a high near 46.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Thornton IL
41.57°N 87.61°W
41.57°N 87.61°W
3:06 pm CST Mar 5, 2026
4pm CST Mar 5, 2026-6pm CDT Mar 12, 2026



