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Hartford, Illinois Weather Forecast
Hartford, Illinois Weather
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Weather Forecast for Hartford, Illinois : Madison County
Issued: 10:11 pm CST Dec 7, 2025 Latitude: 38.8333815 Longitude: -90.09594 View on Google Maps

MouseOver for Detail Forecast
Tonight Monday Tuesday Wednesday Thursday Friday Saturday Sunday
Cloudy on Tonight Mostly Cloudy on Monday Mostly Sunny on Tuesday Partly Sunny on Wednesday 30% chance of snow on Thursday Partly Sunny on Friday Partly Sunny on Saturday Mostly Sunny on Sunday
Low: 21°F High: 34°F High: 51°F High: 47°F High: 36°F High: 27°F High: 20°F High: 26°F
Low: 25°F Low: 39°F Low: 26°F Low: 18°F Low: 6°F Low: 8°F  
Cloudy Mostly Cloudy Mostly Sunny Partly Sunny Snow Partly Sunny Partly Sunny Mostly Sunny
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Current Conditions at
ALTON - (KALN)
27°
Cloudy
as of 11:15 PM CST
Rel. Humidity: 79%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.31 in.
Flight Rule: MVFR
Wind Data
7 MPH
0° North
Cloud Level(s): Solid Overcast at 1400ft
Current Conditions at
ST LOUIS - (KSTL)
27°
Feels like 13°F
Cloudy
as of 10:51 PM CST
Rel. Humidity: 73%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.30 in.
Flight Rule: MVFR
Wind Data
18 MPH
Gust: 24 MPH
010° North
Cloud Level(s): Scattered at 1500ft, Solid Overcast at 2800ft
Current Conditions at
EAST ST LOUIS - (KCPS)
28°
Feels like 17°F
Cloudy
as of 10:53 PM CST
Rel. Humidity: 74%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.30 in.
Flight Rule: MVFR
Wind Data
14 MPH
0° North
Cloud Level(s): Solid Overcast at 1600ft
Current Conditions at
ST CHARLES - (KSET)
27°
Feels like 13°F
Cloudy
as of 10:54 PM CST
Rel. Humidity: 73%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.31 in.
Flight Rule: VFR
Wind Data
17 MPH
020° North
Cloud Level(s): Solid Overcast at 3100ft
Cloudy on Tonight Tonight... Cloudy, with a low around 21. North wind 6 to 9 mph, with gusts as high as 20 mph.

Mostly Cloudy on Monday Monday... Mostly cloudy, then gradually becoming sunny, with a high near 34. North wind around 6 mph becoming light and variable in the afternoon.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 25. Southeast wind 5 to 9 mph.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 51. Southwest wind 8 to 11 mph, with gusts as high as 20 mph.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 39. South wind 11 to 15 mph becoming west after midnight. Winds could gust as high as 24 mph.

Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 47.

20% chance of snow Wednesday Night Wednesday Night... A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 26.

30% chance of snow Thursday Thursday... A 30 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 36.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 18.

Partly Sunny on Friday Friday... Partly sunny, with a high near 27.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 6.

Partly Sunny on Saturday Saturday... Partly sunny and cold, with a high near 20.

Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 8.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 26.

Current Radar Image


Sun Almanac for Hartford, Illinois
Sunrise: 07:07 AM
Sunset: 4:38 PM
Civil Sunrise:06:37 AM
Civil Sunset: 5:08 PM
Nautical Sunrise: 06:04 AM
Nautical Sunset: 5:41 PM
Astro Sunrise: 05:31 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.