New Windsor, Illinois Weather
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Weather Forecast for New Windsor, Illinois : Mercer County
Issued: 8:46 am CDT Sep 16, 2025 Latitude: 41.2022584 Longitude: -90.4423521 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 Mostly Sunny on Thursday 40% chance of on Friday 40% chance of rain on Saturday 30% chance of on Sunday 30% chance of on Monday
High: 89°F Low: 59°F High: 88°F High: 91°F High: 83°F High: 82°F High: 83°F High: 83°F
Low: 60°F Low: 64°F Low: 61°F Low: 63°F Low: 64°F  
Sunny Mostly Clear Sunny Mostly Sunny Partly Sunny Rain Partly Sunny Partly Sunny
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Current Conditions at
MOLINE - (KMLI)
79°
Clear
as of 10:52 AM CDST
Rel. Humidity: 54%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 30.20 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
GALESBURG - (KGBG)
82°
Clear
as of 10:55 AM CDST
Rel. Humidity: 42%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 30.22 in.
Flight Rule: VFR
Wind Data
3 MPH
070° East
Cloud Level(s): Clear
Current Conditions at
DAVENPORT - (KDVN)
81°
Clear
as of 10:52 AM CDST
Rel. Humidity: 51%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 30.22 in.
Flight Rule: VFR
Wind Data
7 MPH
110° East
Cloud Level(s): Clear
Current Conditions at
MUSCATINE - (KMUT)
82°
Clear
as of 10:55 AM CDST
Rel. Humidity: 51%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 30.19 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Sunny on Today Today... Sunny, with a high near 89. Northeast wind around 5 mph.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 59. East wind around 5 mph.
Sunny on Wednesday Wednesday... Sunny, with a high near 88. Calm wind becoming east around 5 mph in the afternoon.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 60. East wind around 5 mph.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 91.
30% chance of rain Thursday Night Thursday Night... A 30 percent chance of showers after 1am. Partly cloudy, with a low around 64.
40% chance of Friday Friday... A 40 percent chance of showers. Partly sunny, with a high near 83.
50% chance of thunderstorms Friday Night Friday Night... A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 50%.
40% chance of rain Saturday Saturday... A 40 percent chance of showers after 1pm. Mostly sunny, with a high near 82.
30% chance of rain Saturday Night Saturday Night... A 30 percent chance of showers. Partly cloudy, with a low around 63.
30% chance of Sunday Sunday... A 30 percent chance of showers. Partly sunny, with a high near 83.
30% chance of rain Sunday Night Sunday Night... A 30 percent chance of showers. Partly cloudy, with a low around 64.
30% chance of Monday Monday... A 30 percent chance of showers. Partly sunny, with a high near 83.
Current Radar Image


Sun Almanac for New Windsor, Illinois
Sunrise: 06:44 AM
Sunset: 7:09 PM
Civil Sunrise:06:16 AM
Civil Sunset: 7:37 PM
Nautical Sunrise: 05:44 AM
Nautical Sunset: 8:09 PM
Astro Sunrise: 05:10 AM
Astro Sunset: 8:43 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.