Thornton, Illinois Weather
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Weather Forecast for Thornton, Illinois : Cook County
Issued: 3:12 am CDT Sep 16, 2025 Latitude: 41.5680904 Longitude: -87.6080999 View on Google Maps

MouseOver for Detail Forecast
Overnight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
Patchy Fog on Overnight Morning Fog on Tuesday Sunny on Wednesday Sunny on Thursday Partly Sunny on Friday 20% chance of on Saturday 20% chance of on Sunday 20% chance of on Monday
Low: 63°F High: 81°F High: 83°F High: 85°F High: 83°F High: 77°F High: 78°F High: 81°F
Low: 61°F Low: 61°F Low: 63°F Low: 64°F Low: 63°F Low: 64°F  
Patchy Fog Morning Fog Sunny Sunny Partly Sunny Partly Sunny Partly Sunny Partly Sunny
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Current Conditions at
LANSING MUNICIPAL - (KIGQ)
59°
Clear
as of 2:55 AM CDST
Rel. Humidity: 100%
Dew Point: 59°F
Visibility: 10 Miles
Pressure: 30.20 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
GARY - (KGYY)
64°
Clear
as of 2:55 AM CDST
Rel. Humidity: 100%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 30.18 in.
Flight Rule: VFR
Wind Data
3 MPH
160° South
Cloud Level(s): Clear
Current Conditions at
CHICAGO-MIDWAY - (KMDW)
66°
Clear
as of 2:53 AM CDST
Rel. Humidity: 82%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 30.19 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
VALPARAISO - (KVPZ)
61°
Clear
as of 2:56 AM CDST
Rel. Humidity: 82%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 30.20 in.
Flight Rule: VFR
Wind Data
5 MPH
060° Northeast
Cloud Level(s): Clear
Patchy Fog on Overnight Overnight... Patchy fog. Otherwise, mostly clear, with a steady temperature around 63. East southeast wind around 5 mph.
Morning Fog on Tuesday Tuesday... Patchy fog before 8am. Otherwise, sunny, with a high near 81. Northeast wind 5 to 10 mph.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 61. North northeast wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.
Sunny on Wednesday Wednesday... Sunny, with a high near 83. Calm wind becoming northeast around 5 mph in the afternoon.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 61. Northeast wind around 5 mph becoming calm in the evening.
Sunny on Thursday Thursday... Sunny, with a high near 85.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 63.
Partly Sunny on Friday Friday... Partly sunny, with a high near 83.
20% chance of rain Friday Night Friday Night... A chance of showers after 1am. Mostly cloudy, with a low around 64.
20% chance of Saturday Saturday... A chance of showers after 1pm. Partly sunny, with a high near 77.
20% chance of rain Saturday Night Saturday Night... A chance of showers. Mostly cloudy, with a low around 63.
20% chance of Sunday Sunday... A chance of showers. Partly sunny, with a high near 78.
20% chance of rain Sunday Night Sunday Night... A chance of showers. Mostly cloudy, with a low around 64.
20% chance of Monday Monday... A chance of showers. Partly sunny, with a high near 81.
Current Radar Image


Sun Almanac for Thornton, Illinois
Sunrise: 06:32 AM
Sunset: 6:58 PM
Civil Sunrise:06:05 AM
Civil Sunset: 7:26 PM
Nautical Sunrise: 05:32 AM
Nautical Sunset: 7:58 PM
Astro Sunrise: 04:58 AM
Astro Sunset: 8:32 PM
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