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Hartford, Illinois Weather Forecast
Hartford, Illinois Weather
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Weather Forecast for Hartford, Illinois : Madison County
Issued: 9:01 am CST Jan 9, 2026 Latitude: 38.8333815 Longitude: -90.09594 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Saturday Sunday Monday Tuesday Wednesday Thursday
Mostly Cloudy on Today 30% chance of rain on Tonight 20% chance of rain on Saturday Sunny on Sunday Sunny on Monday Partly Sunny on Tuesday 20% chance of rain on Wednesday Mostly Sunny on Thursday
High: 51°F Low: 36°F High: 48°F High: 38°F High: 52°F High: 57°F High: 43°F High: 39°F
Low: 24°F Low: 26°F Low: 38°F Low: 36°F Low: 25°F  
Mostly Cloudy Rain Rain Sunny Sunny Partly Sunny Rain Mostly Sunny
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Current Conditions at
ALTON - (KALN)
48°
Feels like 42°F
Cloudy
as of 10:25 AM CST
Rel. Humidity: 70%
Dew Point: 39°F
Visibility: 10 Miles
Pressure: 30.08 in.
Flight Rule: MVFR
Wind Data
14 MPH
330° Northwest
Cloud Level(s): Solid Overcast at 2100ft
Current Conditions at
ST LOUIS - (KSTL)
48°
Feels like 42°F
Mostly Cloudy
as of 10:22 AM CST
Rel. Humidity: 66%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 30.08 in.
Flight Rule: MVFR
Wind Data
14 MPH
320° Northwest
Cloud Level(s): Broken at 2100ft, Broken at 25000ft
Current Conditions at
EAST ST LOUIS - (KCPS)
46°
Feels like 41°F
Mostly Clear
as of 9:53 AM CST
Rel. Humidity: 70%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 30.06 in.
Flight Rule: VFR
Wind Data
10 MPH
320° Northwest
Cloud Level(s): Few at 2400ft
Current Conditions at
ST CHARLES - (KSET)
46°
Feels like 40°F
Mostly Cloudy
as of 10:09 AM CST
Rel. Humidity: 70%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 30.07 in.
Flight Rule: MVFR
Wind Data
14 MPH
290° West
Cloud Level(s): Broken at 2300ft
Mostly Cloudy on Today Today... Mostly cloudy, with a high near 51. Northwest wind 5 to 10 mph becoming north in the afternoon.

30% chance of rain Tonight Tonight... A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 36. Northeast wind around 5 mph becoming calm.

20% chance of rain Saturday Saturday... A 20 percent chance of rain before 8am. Cloudy through mid morning, then gradual clearing, with a high near 48. West wind 6 to 15 mph, with gusts as high as 23 mph.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 24. Northwest wind 11 to 14 mph, with gusts as high as 23 mph.

Sunny on Sunday Sunday... Sunny, with a high near 38. Northwest wind 7 to 14 mph, with gusts as high as 23 mph.

Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 26.

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

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 38.

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

20% chance of rain Tuesday Night Tuesday Night... A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 36.

20% chance of rain Wednesday Wednesday... A 20 percent chance of rain. Mostly cloudy, with a high near 43.

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

Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 39.

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.