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New Castle, Illinois Weather Forecast
New Castle, Illinois Weather
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Weather Forecast for New Castle, Illinois : Tazewell County
Issued: 9:36 pm CST Dec 4, 2025 Latitude: 40.5786492 Longitude: -89.3612018 View on Google Maps

MouseOver for Detail Forecast
Tonight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
Fog on Tonight Morning Fog on Friday Partly Sunny on Saturday 40% chance of snow on Sunday Partly Sunny on Monday Mostly Cloudy on Tuesday 20% chance of rain on Wednesday Partly Sunny on Thursday
Low: -1°F High: 30°F High: 30°F High: 26°F High: 23°F High: 33°F High: 35°F High: 25°F
Low: 21°F Low: 20°F Low: 1 °F Low: 14°F Low: 25°F Low: 13°F  
Fog Morning Fog Partly Sunny Snow Partly Sunny Mostly Cloudy Rain Partly Sunny
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Current Conditions at
PEORIA - (KPIA)
Clear
as of 10:54 PM CST
Rel. Humidity: 71%
Dew Point: -0°F
Visibility: 10 Miles
Pressure: 30.21 in.
Flight Rule: VFR
Wind Data
5 MPH
170° South
Cloud Level(s): Clear
Current Conditions at
BLOOMINGTON - (KBMI)
Clear
as of 10:56 PM CST
Rel. Humidity: 84%
Dew Point: -2°F
Visibility: 10 Miles
Pressure: 30.20 in.
Flight Rule: VFR
Wind Data
3 MPH
170° South
Cloud Level(s): Clear
Current Conditions at
LOGAN COUNTY AIRPORT - (KAAA)
-0°
Clear
as of 10:55 PM CST
Rel. Humidity: 77%
Dew Point: -6°F
Visibility: 10 Miles
Pressure: 30.22 in.
Flight Rule: VFR
Wind Data
3 MPH
150° Southeast
Cloud Level(s): Clear
Current Conditions at
LACON/MARSHALL COUNTY - (KC75)
-0°
Clear
as of 10:55 PM CST
Rel. Humidity: 70%
Dew Point: -8°F
Visibility: 10 Miles
Pressure: 30.21 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Fog on Tonight Tonight... Patchy freezing fog. Partly cloudy, with a low around -1. Wind chill values between -7 and -12. South wind 3 to 7 mph.

Morning Fog on Friday Friday... Patchy freezing fog before 9am. Mostly sunny, with a high near 30. Wind chill values between -9 and 1. South southwest wind 7 to 11 mph, with gusts as high as 20 mph.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 21. South southwest wind 5 to 9 mph becoming west northwest after midnight. Winds could gust as high as 17 mph.

Partly Sunny on Saturday Saturday... Partly sunny, with a high near 30. West northwest wind around 5 mph becoming light and variable in the afternoon.

50% chance of snow Saturday Night Saturday Night... A 50 percent chance of snow after midnight. Cloudy, with a low around 20. East southeast wind 3 to 7 mph.

40% chance of snow Sunday Sunday... A 40 percent chance of snow before noon. Mostly cloudy, with a high near 26. East northeast wind 7 to 10 mph becoming north in the afternoon. Winds could gust as high as 18 mph.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 1. North wind 5 to 10 mph becoming light north northeast after midnight. Winds could gust as high as 17 mph.

Partly Sunny on Monday Monday... Partly sunny, with a high near 23.

30% chance of snow Monday Night Monday Night... A 30 percent chance of snow. Mostly cloudy, with a low around 14.

Mostly Cloudy on Tuesday Tuesday... Mostly cloudy, with a high near 33.

20% chance of snow Tuesday Night Tuesday Night... A chance of snow. Mostly cloudy, with a low around 25.

20% chance of rain Wednesday Wednesday... A chance of rain. Mostly cloudy, with a high near 35.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 13.

Partly Sunny on Thursday Thursday... Partly sunny, with a high near 25.

Current Radar Image


Sun Almanac for New Castle, Illinois
Sunrise: 07:06 AM
Sunset: 4:30 PM
Civil Sunrise:06:36 AM
Civil Sunset: 5:01 PM
Nautical Sunrise: 06:02 AM
Nautical Sunset: 5:35 PM
Astro Sunrise: 05:28 AM
Astro Sunset: 6:08 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.