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Hartford, Illinois Weather Forecast
Hartford, Illinois Weather
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Weather Forecast for Hartford, Illinois : Madison County
Issued: 7:31 pm CST Jan 1, 2026 Latitude: 38.8333815 Longitude: -90.09594 View on Google Maps

MouseOver for Detail Forecast
Tonight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
Cloudy on Tonight Cloudy on Friday Mostly Cloudy on Saturday Mostly Sunny on Sunday Mostly Sunny on Monday Partly Sunny on Tuesday Mostly Sunny on Wednesday 30% chance of rain on Thursday
Low: 28°F High: 36°F High: 41°F High: 42°F High: 59°F High: 62°F High: 57°F High: 60°F
Low: 28°F Low: 24°F Low: 33°F Low: 43°F Low: 38°F Low: 41°F  
Cloudy Cloudy Mostly Cloudy Mostly Sunny Mostly Sunny Partly Sunny Mostly Sunny Rain
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Current Conditions at
ALTON - (KALN)
34°
Cloudy
as of 7:50 PM CST
Rel. Humidity: 86%
Dew Point: 30°F
Visibility: 7 Miles
Pressure: 29.92 in.
Flight Rule: IFR
Wind Data
3 MPH
Cloud Level(s): Solid Overcast at 800ft
Current Conditions at
ST LOUIS - (KSTL)
34°
Cloudy
Mist
as of 7:51 PM CST
Rel. Humidity: 93%
Dew Point: 32°F
Visibility: 5 Miles
Pressure: 29.90 in.
Flight Rule: IFR
Wind Data
6 MPH
120° Southeast
Cloud Level(s): Solid Overcast at 600ft
Current Conditions at
EAST ST LOUIS - (KCPS)
34°
Cloudy
Mist
as of 7:53 PM CST
Rel. Humidity: 93%
Dew Point: 32°F
Visibility: 6 Miles
Pressure: 29.91 in.
Flight Rule: IFR
Wind Data
3 MPH
090° East
Cloud Level(s): Solid Overcast at 600ft
Current Conditions at
ST CHARLES - (KSET)
Clear
as of 7:54 PM CST
Pressure: 29.90 in.
Wind Data
Calm
Cloudy on Tonight Tonight... Cloudy, with a low around 28. Light north wind.
Cloudy on Friday Friday... Cloudy, with a high near 36. Northeast wind 3 to 7 mph.
Cloudy on Friday Night Friday Night... Cloudy, with a low around 28. Northeast wind 3 to 7 mph.
Mostly Cloudy on Saturday Saturday... Mostly cloudy, then gradually becoming sunny, with a high near 41. North wind 3 to 6 mph.
Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 24. Light north wind.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 42.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 33.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 59.
Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 43.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 62.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 38.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 57.
20% chance of rain Wednesday Night Wednesday Night... A 20 percent chance of rain. Mostly cloudy, with a low around 41.
30% chance of rain Thursday Thursday... A 30 percent chance of rain. Mostly cloudy, with a high near 60.
Current Radar Image


Sun Almanac for Hartford, Illinois
Sunrise: 07:19 AM
Sunset: 4:49 PM
Civil Sunrise:06:49 AM
Civil Sunset: 5:19 PM
Nautical Sunrise: 06:16 AM
Nautical Sunset: 5:52 PM
Astro Sunrise: 05:43 AM
Astro Sunset: 6:25 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.