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Hartford, Illinois Weather Forecast
Hartford, Illinois Weather
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Click for Hazardous Weather Outlook for Hartford, Illinois
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Weather Forecast for Hartford, Illinois : Madison County
Issued: 12:26 am CST Dec 12, 2025 Latitude: 38.8333815 Longitude: -90.09594 View on Google Maps

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Overnight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
Mostly Cloudy on Overnight Cloudy on Friday 50% chance of snow on Saturday Sunny on Sunday Sunny on Monday Mostly Sunny on Tuesday Mostly Cloudy on Wednesday 20% chance of rain on Thursday
Low: 29°F High: 36°F High: 24°F High: 13°F High: 37°F High: 49°F High: 56°F High: 53°F
Low: 21°F Low: 2 °F Low: 6°F Low: 25°F Low: 36°F Low: 43°F  
Mostly Cloudy Cloudy Snow Sunny Sunny Mostly Sunny Mostly Cloudy Rain
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Current Conditions at
ALTON - (KALN)
34°
Cloudy
as of 1:15 AM CST
Rel. Humidity: 86%
Dew Point: 30°F
Visibility: 7 Miles
Pressure: 29.95 in.
Flight Rule: IFR
Wind Data
6 MPH
060° Northeast
Cloud Level(s): Solid Overcast at 700ft
Current Conditions at
ST LOUIS - (KSTL)
34°
Feels like 26°F
Cloudy
as of 12:51 AM CST
Rel. Humidity: 80%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 29.91 in.
Flight Rule: VFR
Wind Data
9 MPH
080° East
Cloud Level(s): Few at 1300ft, Solid Overcast at 7000ft
Current Conditions at
EAST ST LOUIS - (KCPS)
34°
Mostly Cloudy
as of 12:53 AM CST
Rel. Humidity: 80%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 29.90 in.
Flight Rule: VFR
Wind Data
8 MPH
100° East
Cloud Level(s): Broken at 7500ft
Current Conditions at
ST CHARLES - (KSET)
36°
Cloudy
as of 12:54 AM CST
Rel. Humidity: 74%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 29.92 in.
Flight Rule: VFR
Wind Data
7 MPH
080° East
Cloud Level(s): Solid Overcast at 7000ft
Mostly Cloudy on Overnight Overnight... Mostly cloudy, with a low around 29. East wind around 7 mph becoming north.
Cloudy on Friday Friday... Cloudy, with a high near 36. Northwest wind 7 to 9 mph.
Partly Cloudy on Friday Night Friday Night... Cloudy, then gradually becoming partly cloudy, with a low around 21. Northwest wind around 6 mph.
50% chance of snow Saturday Saturday... A 50 percent chance of snow, mainly after noon. Cloudy, with a high near 24. North wind 6 to 10 mph.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 2. North wind around 10 mph.
Sunny on Sunday Sunday... Sunny and cold, with a high near 13.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 6.
Sunny on Monday Monday... Sunny, with a high near 37.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 25.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 49.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 36.
Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 56.
30% chance of rain Wednesday Night Wednesday Night... A 30 percent chance of rain. Mostly cloudy, with a low around 43.
20% chance of rain Thursday Thursday... A 20 percent chance of rain. Partly sunny, with a high near 53.
Current Radar Image


Sun Almanac for Hartford, Illinois
Sunrise: 07:10 AM
Sunset: 4:39 PM
Civil Sunrise:06:40 AM
Civil Sunset: 5:09 PM
Nautical Sunrise: 06:07 AM
Nautical Sunset: 5:42 PM
Astro Sunrise: 05:34 AM
Astro Sunset: 6:14 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.