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Hartford, Illinois Weather Forecast
Hartford, Illinois Weather
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Weather Forecast for Hartford, Illinois : Madison County
Issued: 3:16 am CST Jan 11, 2026 Latitude: 38.8333815 Longitude: -90.09594 View on Google Maps

MouseOver for Detail Forecast
Overnight Sunday Monday Tuesday Wednesday Thursday Friday Saturday
20% chance of snow on Overnight Sunny on Sunday Sunny on Monday Partly Sunny on Tuesday Mostly Cloudy on Wednesday Mostly Sunny on Thursday Mostly Cloudy on Friday Mostly Cloudy on Saturday
Low: 26°F High: 38°F High: 52°F High: 59°F High: 44°F High: 38°F High: 42°F High: 32°F
Low: 26°F Low: 36°F Low: 38°F Low: 19°F Low: 28°F Low: 23°F  
Snow Sunny Sunny Partly Sunny Mostly Cloudy Mostly Sunny Mostly Cloudy Mostly Cloudy
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Current Conditions at
ALTON - (KALN)
30°
Feels like 18°F
Mostly Cloudy
as of 3:15 AM CST
Rel. Humidity: 54%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 30.30 in.
Flight Rule: VFR
Wind Data
18 MPH
Gust: 23 MPH
300° Northwest
Cloud Level(s): Broken at 4200ft
Current Conditions at
ST LOUIS - (KSTL)
28°
Feels like 18°F
Clear
as of 2:51 AM CST
Rel. Humidity: 54%
Dew Point: 14°F
Visibility: 10 Miles
Pressure: 30.31 in.
Flight Rule: VFR
Wind Data
12 MPH
Gust: 21 MPH
290° West
Cloud Level(s): Clear
Current Conditions at
EAST ST LOUIS - (KCPS)
30°
Feels like 19°F
Clear
as of 2:53 AM CST
Rel. Humidity: 50%
Dew Point: 14°F
Visibility: 10 Miles
Pressure: 30.30 in.
Flight Rule: VFR
Wind Data
15 MPH
Gust: 23 MPH
300° Northwest
Cloud Level(s): Clear
Current Conditions at
ST CHARLES - (KSET)
28°
Feels like 17°F
Clear
as of 2:54 AM CST
Rel. Humidity: 50%
Dew Point: 12°F
Visibility: 10 Miles
Pressure: 30.31 in.
Flight Rule: VFR
Wind Data
15 MPH
Gust: 25 MPH
300° Northwest
Cloud Level(s): Clear
20% chance of snow Overnight Overnight... A chance of flurries before 5am. Partly cloudy, with a low around 26. Northwest wind around 16 mph, with gusts as high as 28 mph.
Sunny on Sunday Sunday... Sunny, with a high near 38. Northwest wind 7 to 16 mph, with gusts as high as 26 mph.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 26. Light and variable wind becoming southwest 5 to 7 mph after midnight.
Sunny on Monday Monday... Sunny, with a high near 52. Southwest wind 6 to 10 mph.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 36. Southwest wind 3 to 7 mph.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 59.
20% chance of rain Tuesday Night Tuesday Night... A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 38.
Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 44.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 19.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 38.
Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 28.
Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 42.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 23.
Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 32.
Current Radar Image


Sun Almanac for Hartford, Illinois
Sunrise: 07:18 AM
Sunset: 4:58 PM
Civil Sunrise:06:49 AM
Civil Sunset: 5:28 PM
Nautical Sunrise: 06:16 AM
Nautical Sunset: 6:01 PM
Astro Sunrise: 05:44 AM
Astro Sunset: 6:33 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.