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Hartford, Illinois Weather Forecast
Hartford, Illinois Weather
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Weather Forecast for Hartford, Illinois : Madison County
Issued: 11:31 pm CST Dec 8, 2025 Latitude: 38.8333815 Longitude: -90.09594 View on Google Maps

MouseOver for Detail Forecast
Overnight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
Cloudy on Overnight Mostly Cloudy on Tuesday Increasing Clouds on Wednesday 20% chance of snow on Thursday Partly Sunny on Friday Partly Sunny on Saturday Mostly Sunny on Sunday 20% chance of rain on Monday
Low: 32°F High: 50°F High: 38 °F High: 38°F High: 35°F High: 24°F High: 29°F High: 38°F
Low: 45°F Low: 26°F Low: 25°F Low: 13°F Low: 13°F Low: 19°F  
Cloudy Mostly Cloudy Increasing Clouds Snow Partly Sunny Partly Sunny Mostly Sunny Rain
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Current Conditions at
ALTON - (KALN)
30°
Mostly Cloudy
as of 11:35 PM CST
Rel. Humidity: 68%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
7 MPH
160° South
Cloud Level(s): Broken at 11000ft
Current Conditions at
ST LOUIS - (KSTL)
32°
Feels like 23°F
Mostly Cloudy
as of 10:51 PM CST
Rel. Humidity: 63%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
12 MPH
170° South
Cloud Level(s): Broken at 11000ft
Current Conditions at
EAST ST LOUIS - (KCPS)
30°
Mostly Cloudy
as of 10:53 PM CST
Rel. Humidity: 68%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.17 in.
Flight Rule: VFR
Wind Data
7 MPH
170° South
Cloud Level(s): Broken at 11000ft
Current Conditions at
ST CHARLES - (KSET)
30°
Cloudy
as of 10:54 PM CST
Rel. Humidity: 74%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
7 MPH
140° Southeast
Cloud Level(s): Solid Overcast at 11000ft
Cloudy on Overnight Overnight... Cloudy, with a steady temperature around 32. South wind around 9 mph.

Mostly Cloudy on Tuesday Tuesday... Mostly cloudy, then gradually becoming sunny, with a high near 50. South wind 9 to 13 mph, with gusts as high as 23 mph.

Partly Cloudy on Tuesday Night Tuesday Night... Cloudy, then gradually becoming partly cloudy, with a steady temperature around 45. South wind 13 to 17 mph becoming west after midnight. Winds could gust as high as 28 mph.

Increasing Clouds on Wednesday Wednesday... Increasing clouds, with a temperature falling to around 38 by 5pm. Breezy, with a northwest wind 14 to 24 mph, with gusts as high as 40 mph.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 26. Northwest wind 5 to 10 mph becoming light after midnight.

20% chance of snow Thursday Thursday... A 20 percent chance of snow. Mostly cloudy, with a high near 38.

20% chance of snow Thursday Night Thursday Night... A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 25.

Partly Sunny on Friday Friday... Partly sunny, with a high near 35.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 13.

Partly Sunny on Saturday Saturday... Partly sunny, with a high near 24.

Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 13.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 29.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 19.

20% chance of rain Monday Monday... A 20 percent chance of rain. Mostly cloudy, with a high near 38.

Current Radar Image


Sun Almanac for Hartford, Illinois
Sunrise: 07:07 AM
Sunset: 4:38 PM
Civil Sunrise:06:38 AM
Civil Sunset: 5:08 PM
Nautical Sunrise: 06:04 AM
Nautical Sunset: 5:41 PM
Astro Sunrise: 05:32 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.