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Hartford, Illinois Weather Forecast
Hartford, Illinois Weather
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Weather Forecast for Hartford, Illinois : Madison County
Issued: 10:51 pm CST Dec 13, 2025 Latitude: 38.8333815 Longitude: -90.09594 View on Google Maps

MouseOver for Detail Forecast
Overnight Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Mostly Clear on Overnight Sunny on Sunday Sunny on Monday Sunny on Tuesday Mostly Sunny on Wednesday 40% chance of rain on Thursday Mostly Sunny on Friday 20% chance of rain on Saturday
Low: 2 °F High: 14°F High: 41°F High: 51°F High: 55°F High: 58°F High: 41°F High: 56°F
Low: 7 °F Low: 25°F Low: 36°F Low: 44°F Low: 25°F Low: 34°F  
Mostly Clear Sunny Sunny Sunny Mostly Sunny Rain Mostly Sunny Rain
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Current Conditions at
ALTON - (KALN)
9°
Feels like -4°F
Clear
as of 1:15 AM CST
Rel. Humidity: 60%
Dew Point: -2°F
Visibility: 10 Miles
Pressure: 30.55 in.
Flight Rule: VFR
Wind Data
9 MPH
310° Northwest
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
9°
Feels like -4°F
Mostly Clear
as of 12:51 AM CST
Rel. Humidity: 71%
Dew Point: 1°F
Visibility: 10 Miles
Pressure: 30.54 in.
Flight Rule: VFR
Wind Data
9 MPH
320° Northwest
Cloud Level(s): Few at 2000ft, Few at 25000ft
Current Conditions at
EAST ST LOUIS - (KCPS)
10°
Feels like -7°F
Clear
as of 12:53 AM CST
Rel. Humidity: 60%
Dew Point: -0°F
Visibility: 10 Miles
Pressure: 30.55 in.
Flight Rule: VFR
Wind Data
17 MPH
330° Northwest
Cloud Level(s): Clear
Current Conditions at
ST CHARLES - (KSET)
9°
Feels like -5°F
Clear
as of 12:54 AM CST
Rel. Humidity: 65%
Dew Point: -0°F
Visibility: 10 Miles
Pressure: 30.56 in.
Flight Rule: VFR
Wind Data
10 MPH
320° Northwest
Cloud Level(s): Clear
Mostly Clear on Overnight Overnight... Mostly clear, with a low around 2. Wind chill values as low as -10. Northwest wind 11 to 13 mph, with gusts as high as 22 mph.
Sunny on Sunday Sunday... Sunny and cold, with a high near 14. Wind chill values as low as -15. Northwest wind 5 to 13 mph, with gusts as high as 21 mph.
Clear on Sunday Night Sunday Night... Clear, with a low around 7. Light and variable wind becoming south 5 to 9 mph in the evening.
Sunny on Monday Monday... Sunny, with a high near 41. Southwest wind 7 to 13 mph, with gusts as high as 21 mph.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 25. Southwest wind 3 to 6 mph.
Sunny on Tuesday Tuesday... Sunny, with a high near 51.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 36.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 55.
30% chance of rain Wednesday Night Wednesday Night... A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 44.
40% chance of rain Thursday Thursday... A 40 percent chance of rain, mainly before noon. Partly sunny, with a high near 58.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 25.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 41.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 34.
20% chance of rain Saturday Saturday... A 20 percent chance of rain. Partly sunny, with a high near 56.
Current Radar Image


Sun Almanac for Hartford, Illinois
Sunrise: 07:11 AM
Sunset: 4:39 PM
Civil Sunrise:06:41 AM
Civil Sunset: 5:09 PM
Nautical Sunrise: 06:08 AM
Nautical Sunset: 5:43 PM
Astro Sunrise: 05:36 AM
Astro Sunset: 6:15 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.