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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 pm CST Nov 27, 2025 Latitude: 38.8333815 Longitude: -90.09594 View on Google Maps

MouseOver for Detail Forecast
Tonight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
Clear on Tonight Increasing Clouds on Friday 100% chance of rain & snow on Saturday Mostly Cloudy on Sunday Mostly Cloudy on Monday Mostly Sunny on Tuesday Mostly Sunny on Wednesday Mostly Cloudy on Thursday
Low: 22°F High: 37°F High: 37°F High: 30°F High: 28°F High: 32°F High: 39°F High: 37°F
Low: 30°F Low: 25°F Low: 15°F Low: 18°F Low: 19°F Low: 24°F  
Clear Increasing Clouds Rain & Snow Mostly Cloudy Mostly Cloudy Mostly Sunny Mostly Sunny Mostly Cloudy
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Current Conditions at
ALTON - (KALN)
39°
Clear
as of 3:50 PM CST
Rel. Humidity: 35%
Dew Point: 14°F
Visibility: 10 Miles
Pressure: 30.38 in.
Flight Rule: VFR
Wind Data
8 MPH
290° West
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
37°
Clear
as of 3:51 PM CST
Rel. Humidity: 44%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.38 in.
Flight Rule: VFR
Wind Data
8 MPH
290° West
Cloud Level(s): Clear
Current Conditions at
EAST ST LOUIS - (KCPS)
39°
Clear
as of 3:53 PM CST
Rel. Humidity: 38%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 30.39 in.
Flight Rule: VFR
Wind Data
8 MPH
300° Northwest
Cloud Level(s): Clear
Current Conditions at
ST CHARLES - (KSET)
39°
Clear
as of 3:54 PM CST
Rel. Humidity: 41%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.38 in.
Flight Rule: VFR
Wind Data
8 MPH
250° West
Cloud Level(s): Clear
Clear on Tonight Tonight... Clear, with a low around 22. Northwest wind 3 to 6 mph.

Increasing Clouds on Friday Friday... Increasing clouds, with a high near 37. Light and variable wind.

80% chance of snow Friday Night Friday Night... Snow, mainly after 3am. Low around 30. Light southeast wind increasing to 5 to 10 mph in the evening. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

100% chance of rain & snow Saturday Saturday... Snow before noon, then rain and snow. High near 37. Southeast wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

80% chance of rain & snow Saturday Night Saturday Night... Rain and snow, mainly before midnight. Low around 25. South wind 10 to 14 mph becoming northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Mostly Cloudy on Sunday Sunday... Mostly cloudy, with a high near 30.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 15.

Mostly Cloudy on Monday Monday... Mostly cloudy, with a high near 28.

30% chance of snow Monday Night Monday Night... A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 18.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 32.

Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 19.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 39.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 24.

Mostly Cloudy on Thursday Thursday... Mostly cloudy, with a high near 37.

Current Radar Image


Sun Almanac for Hartford, Illinois
Sunrise: 06:56 AM
Sunset: 4:40 PM
Civil Sunrise:06:27 AM
Civil Sunset: 5:09 PM
Nautical Sunrise: 05:54 AM
Nautical Sunset: 5:42 PM
Astro Sunrise: 05:22 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.