Posen, Illinois Weather
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Weather Forecast for Posen, Illinois : Cook County
Issued: 9:26 am CDT Sep 16, 2025 Latitude: 41.6317008 Longitude: -87.681437 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Wednesday Thursday Friday Saturday Sunday Monday
Sunny on Today Mostly Clear on Tonight Sunny on Wednesday Sunny on Thursday Partly Sunny on Friday 20% chance of rain on Saturday 20% chance of on Sunday 20% chance of on Monday
High: 81°F Low: 62°F High: 83°F High: 85°F High: 83°F High: 77°F High: 78°F High: 81°F
Low: 62°F Low: 64°F Low: 65°F Low: 63°F Low: 65°F  
Sunny Mostly Clear Sunny Sunny Partly Sunny Rain Partly Sunny Partly Sunny
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Current Conditions at
LANSING MUNICIPAL - (KIGQ)
70°
Clear
as of 9:15 AM CDST
Rel. Humidity: 56%
Dew Point: 54°F
Visibility: 10 Miles
Pressure: 30.25 in.
Flight Rule: VFR
Wind Data
3 MPH
100° East
Cloud Level(s): Clear
Current Conditions at
CHICAGO-MIDWAY - (KMDW)
73°
Mostly Clear
as of 8:53 AM CDST
Rel. Humidity: 49%
Dew Point: 54°F
Visibility: 10 Miles
Pressure: 30.24 in.
Flight Rule: VFR
Wind Data
5 MPH
130° Southeast
Cloud Level(s): Few at 25000ft
Current Conditions at
GARY - (KGYY)
72°
Clear
as of 8:50 AM CDST
Rel. Humidity: 56%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 30.24 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
CHICAGO/WHEELING - (KPWK)
72°
Clear
as of 8:52 AM CDST
Rel. Humidity: 68%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 30.25 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Sunny on Today Today... Sunny, with a high near 81. East northeast wind 5 to 10 mph.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 62. 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 62. East northeast wind around 5 mph becoming calm in the evening.
Sunny on Thursday Thursday... Sunny, with a high near 85. Calm wind becoming east northeast around 5 mph in the afternoon.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 64.
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 65.
20% chance of rain Saturday Saturday... A chance of showers after 1pm. Mostly cloudy, 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 65.
20% chance of Monday Monday... A chance of showers. Partly sunny, with a high near 81.
Current Radar Image


Sun Almanac for Posen, Illinois
Sunrise: 06:33 AM
Sunset: 6:58 PM
Civil Sunrise:06:05 AM
Civil Sunset: 7:26 PM
Nautical Sunrise: 05:32 AM
Nautical Sunset: 7:59 PM
Astro Sunrise: 04:58 AM
Astro Sunset: 8:32 PM
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