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Hartford, Illinois Weather Forecast
Hartford, Illinois Weather
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Weather Forecast for Hartford, Illinois : Madison County
Issued: 1:56 pm CST Dec 5, 2025 Latitude: 38.8333815 Longitude: -90.09594 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Saturday Sunday Monday Tuesday Wednesday Thursday
Sunny on This Afternoon Mostly Cloudy on Tonight Partly Sunny on Saturday 30% chance of rain & snow on Sunday Mostly Sunny on Monday Mostly Sunny on Tuesday 30% chance of rain on Wednesday Partly Sunny on Thursday
High: 38°F Low: 27°F High: 39°F High: 38°F High: 31°F High: 46°F High: 46°F High: 33°F
Low: 30°F Low: 13°F Low: 22°F Low: 35°F Low: 21°F  
Sunny Mostly Cloudy Partly Sunny Rain & Snow Mostly Sunny Mostly Sunny Rain Partly Sunny
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Current Conditions at
ALTON - (KALN)
36°
Feels like 28°F
Clear
as of 1:50 PM CST
Rel. Humidity: 43%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 29.93 in.
Flight Rule: VFR
Wind Data
9 MPH
160° South
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
39°
Partly Cloudy
as of 1:51 PM CST
Rel. Humidity: 41%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 29.92 in.
Flight Rule: VFR
Wind Data
8 MPH
160° South
Cloud Level(s): Few at 5500ft, Scattered at 25000ft
Current Conditions at
EAST ST LOUIS - (KCPS)
43°
Feels like 37°F
Clear
as of 1:53 PM CST
Rel. Humidity: 35%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 29.93 in.
Flight Rule: VFR
Wind Data
9 MPH
Gust: 18 MPH
190° South
Cloud Level(s): Clear
Current Conditions at
ST CHARLES - (KSET)
34°
Clear
as of 1:54 PM CST
Rel. Humidity: 59%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 29.92 in.
Flight Rule: VFR
Wind Data
3 MPH
100° East
Cloud Level(s): Clear
Sunny on This Afternoon This Afternoon... Sunny, with a high near 38. South wind 5 to 7 mph.

Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 27. South wind 5 to 7 mph becoming west after midnight.

Partly Sunny on Saturday Saturday... Partly sunny, with a high near 39. Light and variable wind becoming east around 5 mph in the afternoon.

40% chance of snow Saturday Night Saturday Night... A 40 percent chance of snow after midnight. Mostly cloudy, with a low around 30. Southeast wind around 6 mph.

30% chance of rain & snow Sunday Sunday... A chance of rain before 9am, then a chance of snow between 9am and noon. Mostly cloudy, with a high near 38. Southeast wind 6 to 14 mph becoming north in the afternoon. Chance of precipitation is 30%.

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

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 31.

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

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 46.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 35.

30% chance of rain Wednesday Wednesday... A 30 percent chance of rain. Mostly cloudy, with a high near 46.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 21.

Partly Sunny on Thursday Thursday... Partly sunny, with a high near 33.

Current Radar Image


Sun Almanac for Hartford, Illinois
Sunrise: 07:04 AM
Sunset: 4:38 PM
Civil Sunrise:06:34 AM
Civil Sunset: 5:08 PM
Nautical Sunrise: 06:01 AM
Nautical Sunset: 5:41 PM
Astro Sunrise: 05:29 AM
Astro Sunset: 6:13 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.