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Hartford, Illinois Weather Forecast
Hartford, Illinois Weather
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Weather Forecast for Hartford, Illinois : Madison County
Issued: 3:16 am CST Dec 1, 2025 Latitude: 38.8333815 Longitude: -90.09594 View on Google Maps

MouseOver for Detail Forecast
Overnight Monday Tuesday Wednesday Thursday Friday Saturday Sunday
Cloudy on Overnight 60% chance of snow on Monday Partly Sunny on Tuesday Partly Sunny on Wednesday Mostly Sunny on Thursday 30% chance of snow on Friday Partly Sunny on Saturday Mostly Cloudy on Sunday
Low: 20°F High: 30°F High: 30°F High: 39°F High: 22°F High: 34°F High: 39°F High: 36°F
Low: 19°F Low: 20°F Low: 14°F Low: 11°F Low: 26°F Low: 25°F  
Cloudy Snow Partly Sunny Partly Sunny Mostly Sunny Snow Partly Sunny Mostly Cloudy
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Current Conditions at
ALTON - (KALN)
23°
Cloudy
as of 3:35 AM CST
Rel. Humidity: 79%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.47 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 2500ft
Current Conditions at
ST LOUIS - (KSTL)
23°
Cloudy
as of 2:51 AM CST
Rel. Humidity: 79%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.47 in.
Flight Rule: MVFR
Wind Data
3 MPH
100° East
Cloud Level(s): Solid Overcast at 2400ft
Current Conditions at
EAST ST LOUIS - (KCPS)
23°
Cloudy
as of 2:53 AM CST
Rel. Humidity: 79%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.49 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 2600ft
Current Conditions at
ST CHARLES - (KSET)
23°
Cloudy
as of 2:54 AM CST
Rel. Humidity: 79%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.48 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 2400ft
Cloudy on Overnight Overnight... Cloudy, with a low around 20. Calm wind.

60% chance of snow Monday Monday... Snow likely, mainly after 5pm. Cloudy, with a high near 30. Calm wind becoming east around 5 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

100% chance of snow Monday Night Monday Night... Snow, mainly before 11pm. Low around 19. Calm wind becoming northwest around 6 mph after midnight. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 30. Northwest wind around 6 mph becoming light and variable in the afternoon.

Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 20. South wind 3 to 6 mph.

Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 39.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 14.

Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 22.

20% chance of snow Thursday Night Thursday Night... A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 11.

30% chance of snow Friday Friday... A 30 percent chance of snow. Mostly cloudy, with a high near 34.

20% chance of rain Friday Night Friday Night... A 20 percent chance of rain. Mostly cloudy, with a low around 26.

Partly Sunny on Saturday Saturday... Partly sunny, with a high near 39.

Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 25.

Mostly Cloudy on Sunday Sunday... Mostly cloudy, with a high near 36.

Current Radar Image


Sun Almanac for Hartford, Illinois
Sunrise: 07:00 AM
Sunset: 4:39 PM
Civil Sunrise:06:31 AM
Civil Sunset: 5:08 PM
Nautical Sunrise: 05:58 AM
Nautical Sunset: 5:41 PM
Astro Sunrise: 05:26 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.