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Niantic, Illinois Weather Forecast
Niantic, Illinois Weather
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Weather Forecast for Niantic, Illinois : Macon County
Issued: 4:26 am CST Dec 11, 2025 Latitude: 39.8539297 Longitude: -89.1661942 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Friday Saturday Sunday Monday Tuesday Wednesday
100% chance of snow on Today 100% chance of snow on Tonight Mostly Cloudy on Friday 80% chance of snow on Saturday Sunny on Sunday Sunny on Monday Mostly Sunny on Tuesday Mostly Cloudy on Wednesday
High: 29°F Low: 25°F High: 32°F High: 17°F High: 4 °F High: 26°F High: 35°F High: 41°F
Low: 13°F Low: -8°F Low: -7°F Low: 15°F Low: 29°F  
Snow Snow Mostly Cloudy Snow Sunny Sunny Mostly Sunny Mostly Cloudy
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Current Conditions at
DECATUR - (KDEC)
27°
Cloudy
as of 5:54 AM CST
Rel. Humidity: 79%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.04 in.
Flight Rule: MVFR
Wind Data
7 MPH
290° West
Cloud Level(s): Solid Overcast at 1400ft
Current Conditions at
LOGAN COUNTY AIRPORT - (KAAA)
27°
Cloudy
as of 6:35 AM CST
Rel. Humidity: 73%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.04 in.
Flight Rule: MVFR
Wind Data
3 MPH
280° West
Cloud Level(s): Broken at 1400ft, Solid Overcast at 2200ft
Current Conditions at
TAYLORVILLE MUNICIPAL - (KTAZ)
27°
Cloudy
as of 6:35 AM CST
Rel. Humidity: 79%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.05 in.
Flight Rule: VFR
Wind Data
6 MPH
300° Northwest
Cloud Level(s): Scattered at 1800ft, Solid Overcast at 3100ft
Current Conditions at
BLOOMINGTON - (KBMI)
25°
Feels like 15°F
Cloudy
as of 5:56 AM CST
Rel. Humidity: 85%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: IFR
Wind Data
9 MPH
280° West
Cloud Level(s): Solid Overcast at 800ft
100% chance of snow Today Today... Snow, mainly after 3pm. High near 29. West northwest wind around 6 mph becoming south southeast in the afternoon. Chance of precipitation is 100%. Total daytime snow accumulation of around an inch possible.
100% chance of snow Tonight Tonight... Snow, mainly before midnight. Low around 25. Southeast wind 7 to 9 mph becoming north northeast after midnight. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 32. North northeast wind 8 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 16 mph.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 13. Wind chill values between 2 and 7. West northwest wind around 11 mph, with gusts as high as 17 mph.
80% chance of snow Saturday Saturday... Snow, mainly after noon. The snow could be heavy at times. High near 17. North northwest wind around 10 mph, with gusts as high as 16 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.
Mostly Clear on Saturday Night Saturday Night... Mostly cloudy, then gradually becoming mostly clear, with a low around -8. Northwest wind around 11 mph, with gusts as high as 18 mph.
Sunny on Sunday Sunday... Sunny and cold, with a high near 4. Northwest wind 5 to 10 mph, with gusts as high as 17 mph.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around -7.
Sunny on Monday Monday... Sunny, with a high near 26.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 15.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 35.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 29.
Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 41.
Current Radar Image


Sun Almanac for Niantic, Illinois
Sunrise: 07:08 AM
Sunset: 4:32 PM
Civil Sunrise:06:38 AM
Civil Sunset: 5:02 PM
Nautical Sunrise: 06:04 AM
Nautical Sunset: 5:36 PM
Astro Sunrise: 05:31 AM
Astro Sunset: 6:09 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.