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Hartford, Illinois Weather Forecast
Hartford, Illinois Weather
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Weather Forecast for Hartford, Illinois : Madison County
Issued: 4:51 pm CST Jan 9, 2026 Latitude: 38.8333815 Longitude: -90.09594 View on Google Maps

MouseOver for Detail Forecast
Tonight Saturday Sunday Monday Tuesday Wednesday Thursday Friday
30% chance of rain on Tonight 30% chance of rain on Saturday Sunny on Sunday Sunny on Monday Partly Sunny on Tuesday Mostly Cloudy on Wednesday Mostly Sunny on Thursday Mostly Cloudy on Friday
Low: 38°F High: 47°F High: 38°F High: 52°F High: 57°F High: 44°F High: 36°F High: 43°F
Low: 25°F Low: 26°F Low: 36°F Low: 37°F Low: 22°F Low: 26°F  
Rain Rain Sunny Sunny Partly Sunny Mostly Cloudy Mostly Sunny Mostly Cloudy
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Current Conditions at
ALTON - (KALN)
45°
Clear
as of 6:50 PM CST
Rel. Humidity: 81%
Dew Point: 39°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
6 MPH
050° Northeast
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
45°
Partly Cloudy
as of 6:51 PM CST
Rel. Humidity: 75%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
3 MPH
050° Northeast
Cloud Level(s): Scattered at 20000ft
Current Conditions at
EAST ST LOUIS - (KCPS)
43°
Clear
as of 6:53 PM CST
Rel. Humidity: 81%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
5 MPH
130° Southeast
Cloud Level(s): Clear
Current Conditions at
ST CHARLES - (KSET)
43°
Clear
as of 6:54 PM CST
Rel. Humidity: 81%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
5 MPH
020° North
Cloud Level(s): Clear
30% chance of rain Tonight Tonight... A 30 percent chance of rain, mainly between 3am and 5am. Mostly cloudy, with a low around 38. East wind around 6 mph becoming calm.

30% chance of rain Saturday Saturday... A chance of rain before 9am, then a chance of sprinkles after 5pm. Cloudy through mid morning, then gradual clearing, with a high near 47. Northwest wind 7 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

20% chance of snow Saturday Night Saturday Night... A chance of sprinkles and flurries before 11pm, then a chance of flurries between 11pm and midnight. Partly cloudy, with a low around 25. Northwest wind 10 to 15 mph, with gusts as high as 29 mph.

Sunny on Sunday Sunday... Sunny, with a high near 38. Northwest wind 7 to 15 mph, with gusts as high as 24 mph.

Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 26. Light and variable wind becoming southwest 5 to 7 mph after midnight.

Sunny on Monday Monday... Sunny, with a high near 52.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 36.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 57.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 37.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 44.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 22.

Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 36.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 26.

Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 43.

Current Radar Image


Sun Almanac for Hartford, Illinois
Sunrise: 07:19 AM
Sunset: 4:56 PM
Civil Sunrise:06:49 AM
Civil Sunset: 5:26 PM
Nautical Sunrise: 06:16 AM
Nautical Sunset: 5:59 PM
Astro Sunrise: 05:44 AM
Astro Sunset: 6:31 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.