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Hartford, Illinois Weather Forecast
Hartford, Illinois Weather
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Weather Forecast for Hartford, Illinois : Madison County
Issued: 10:31 pm CST Dec 30, 2025 Latitude: 38.8333815 Longitude: -90.09594 View on Google Maps

MouseOver for Detail Forecast
Overnight Wednesday New Year's Day Friday Saturday Sunday Monday Tuesday
Cloudy on Overnight Mostly Cloudy on Wednesday Partly Sunny on New Year's Day Mostly Cloudy on Friday Mostly Sunny on Saturday Mostly Sunny on Sunday Mostly Sunny on Monday Sunny on Tuesday
Low: 27°F High: 43°F High: 37°F High: 42°F High: 40°F High: 49°F High: 51°F High: 47°F
Low: 25°F Low: 28°F Low: 25°F Low: 25°F Low: 34°F Low: 31°F  
Cloudy Mostly Cloudy Partly Sunny Mostly Cloudy Mostly Sunny Mostly Sunny Mostly Sunny Sunny
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Current Conditions at
ALTON - (KALN)
28°
Feels like 19°F
Clear
as of 2:15 AM CST
Rel. Humidity: 63%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.06 in.
Flight Rule: VFR
Wind Data
9 MPH
270° West
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
30°
Clear
as of 1:51 AM CST
Rel. Humidity: 58%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.07 in.
Flight Rule: VFR
Wind Data
8 MPH
270° West
Cloud Level(s): Clear
Current Conditions at
EAST ST LOUIS - (KCPS)
32°
Clear
as of 1:53 AM CST
Rel. Humidity: 50%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 30.07 in.
Flight Rule: VFR
Wind Data
5 MPH
270° West
Cloud Level(s): Clear
Current Conditions at
ST CHARLES - (KSET)
27°
Clear
as of 1:54 AM CST
Rel. Humidity: 63%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 30.07 in.
Flight Rule: VFR
Wind Data
7 MPH
250° West
Cloud Level(s): Clear
Cloudy on Overnight Overnight... Partly cloudy, with a low around 27. West wind around 8 mph.
Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 43. West wind 7 to 11 mph, with gusts as high as 20 mph.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 25. West wind around 6 mph becoming light and variable.
Partly Sunny on New Year's Day New Year's Day... Partly sunny, with a high near 37. Northeast wind around 5 mph becoming light and variable in the afternoon.
Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 28. Light southeast wind.
Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 42.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 25.
Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 40.
Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 25.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 49.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 34.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 51.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 31.
Sunny on Tuesday Tuesday... Sunny, with a high near 47.
Current Radar Image


Sun Almanac for Hartford, Illinois
Sunrise: 07:19 AM
Sunset: 4:48 PM
Civil Sunrise:06:49 AM
Civil Sunset: 5:18 PM
Nautical Sunrise: 06:16 AM
Nautical Sunset: 5:52 PM
Astro Sunrise: 05:43 AM
Astro Sunset: 6:24 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.