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Hartford, Illinois Weather Forecast
Hartford, Illinois Weather
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Weather Forecast for Hartford, Illinois : Madison County
Issued: 5:11 pm CST Dec 22, 2025 Latitude: 38.8333815 Longitude: -90.09594 View on Google Maps

MouseOver for Detail Forecast
Tonight Tuesday Wednesday Christmas Day Friday Saturday Sunday Monday
Cloudy on Tonight Partly Sunny on Tuesday Mostly Cloudy on Wednesday Mostly Cloudy on Christmas Day Sunny on Friday Mostly Cloudy on Saturday Mostly Sunny on Sunday Sunny on Monday
Low: 42°F High: 61°F High: 66°F High: 70°F High: 71°F High: 70°F High: 46°F High: 36°F
Low: 42°F Low: 53°F Low: 60°F Low: 48°F Low: 37°F Low: 22°F  
Cloudy Partly Sunny Mostly Cloudy Mostly Cloudy Sunny Mostly Cloudy Mostly Sunny Sunny
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Current Conditions at
ALTON - (KALN)
48°
Feels like 43°F
Partly Cloudy
as of 4:50 PM CST
Rel. Humidity: 45%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 30.04 in.
Flight Rule: VFR
Wind Data
10 MPH
130° Southeast
Cloud Level(s): Scattered at 4400ft
Current Conditions at
ST LOUIS - (KSTL)
48°
Feels like 43°F
Mostly Cloudy
as of 5:24 PM CST
Rel. Humidity: 49%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: MVFR
Wind Data
10 MPH
130° Southeast
Cloud Level(s): Broken at 2800ft
Cloudy on Tonight Tonight... Partly cloudy, with a low around 42. South wind 5 to 9 mph.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 61. South wind 5 to 7 mph becoming north in the afternoon.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 42. Calm wind becoming east around 5 mph after midnight.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 66. Southeast wind 6 to 9 mph.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 53. South wind 5 to 7 mph becoming light and variable after midnight.

Mostly Cloudy on Christmas Day Christmas Day... Mostly cloudy, with a high near 70.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 60.

Sunny on Friday Friday... Sunny, with a high near 71.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 48.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 70.

20% chance of rain Saturday Night Saturday Night... A 20 percent chance of rain. Mostly cloudy, with a low around 37.

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

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

Sunny on Monday Monday... Sunny, with a high near 36.

Sun Almanac for Hartford, Illinois
Sunrise: 07:16 AM
Sunset: 4:42 PM
Civil Sunrise:06:46 AM
Civil Sunset: 5:12 PM
Nautical Sunrise: 06:12 AM
Nautical Sunset: 5:46 PM
Astro Sunrise: 05:40 AM
Astro Sunset: 6:18 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.