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Hartford, Illinois Weather Forecast
Hartford, Illinois Weather
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Weather Forecast for Hartford, Illinois : Madison County
Issued: 5:31 pm CST Dec 28, 2025 Latitude: 38.8333815 Longitude: -90.09594 View on Google Maps

MouseOver for Detail Forecast
Tonight Monday Tuesday Wednesday New Year's Day Friday Saturday Sunday
20% chance of rain & snow on Tonight Mostly Cloudy on Monday Mostly Sunny on Tuesday Mostly Sunny on Wednesday Mostly Sunny on New Year's Day Partly Sunny on Friday Partly Sunny on Saturday Mostly Sunny on Sunday
Low: 21°F High: 29°F High: 36°F High: 43°F High: 39°F High: 42°F High: 44°F High: 41°F
Low: 18°F Low: 27°F Low: 25°F Low: 22°F Low: 28°F Low: 24°F  
Rain & Snow Mostly Cloudy Mostly Sunny Mostly Sunny Mostly Sunny Partly Sunny Partly Sunny Mostly Sunny
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Current Conditions at
ALTON - (KALN)
50°
Feels like 42°F
Mostly Cloudy
as of 4:50 PM CST
Rel. Humidity: 76%
Dew Point: 43°F
Visibility: 10 Miles
Pressure: 29.68 in.
Flight Rule: MVFR
Wind Data
25 MPH
Gust: 39 MPH
310° Northwest
Cloud Level(s): Broken at 2000ft
Current Conditions at
ST LOUIS - (KSTL)
46°
Feels like 37°F
Cloudy
as of 4:51 PM CST
Rel. Humidity: 75%
Dew Point: 39°F
Visibility: 10 Miles
Pressure: 29.72 in.
Flight Rule: MVFR
Wind Data
26 MPH
Gust: 41 MPH
300° Northwest
Cloud Level(s): Solid Overcast at 1900ft
Current Conditions at
EAST ST LOUIS - (KCPS)
50°
Feels like 43°F
Mostly Cloudy
as of 5:06 PM CST
Rel. Humidity: 71%
Dew Point: 41°F
Visibility: 10 Miles
Pressure: 29.71 in.
Flight Rule: MVFR
Wind Data
21 MPH
Gust: 43 MPH
290° West
Cloud Level(s): Broken at 2200ft
20% chance of rain & snow Tonight Tonight... A slight chance of rain and snow between 9pm and 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 21. Breezy, with a west wind around 25 mph, with gusts as high as 41 mph. Chance of precipitation is 20%.

Mostly Cloudy on Monday Monday... Mostly cloudy, then gradually becoming sunny, with a high near 29. Breezy, with a northwest wind 15 to 24 mph, with gusts as high as 36 mph.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 18. Northwest wind 6 to 14 mph, with gusts as high as 23 mph.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 36. West wind 6 to 9 mph.

Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 27. West wind around 7 mph.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 43.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 25.

Mostly Sunny on New Year's Day New Year's Day... Mostly sunny, with a high near 39.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 22.

Partly Sunny on Friday Friday... Partly sunny, with a high near 42.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 28.

Partly Sunny on Saturday Saturday... Partly sunny, with a high near 44.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 24.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 41.

Sun Almanac for Hartford, Illinois
Sunrise: 07:18 AM
Sunset: 4:46 PM
Civil Sunrise:06:48 AM
Civil Sunset: 5:16 PM
Nautical Sunrise: 06:15 AM
Nautical Sunset: 5:50 PM
Astro Sunrise: 05:42 AM
Astro Sunset: 6:22 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.