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Hartford, Illinois Weather Forecast
Hartford, Illinois Weather
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Weather Forecast for Hartford, Illinois : Madison County
Issued: 9:26 pm CST Nov 18, 2025 Latitude: 38.8333815 Longitude: -90.09594 View on Google Maps

MouseOver for Detail Forecast
Tonight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Cloudy on Tonight Cloudy on Wednesday 70% chance of thunderstorms on Thursday 80% chance of rain on Friday Partly Sunny on Saturday Sunny on Sunday 30% chance of rain on Monday 40% chance of rain on Tuesday
Low: 46°F High: 59°F High: 62°F High: 60°F High: 60°F High: 63°F High: 62°F High: 58°F
Low: 48°F Low: 53°F Low: 46°F Low: 41°F Low: 44°F Low: 44°F  
Cloudy Cloudy Thunderstorms Rain Partly Sunny Sunny Rain Rain
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Current Conditions at
ALTON - (KALN)
46°
Clear
Mist
as of 11:15 PM CST
Rel. Humidity: 100%
Dew Point: 46°F
Visibility: 4 Miles
Pressure: 30.06 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
50°
Mostly Cloudy
as of 11:20 PM CST
Rel. Humidity: 93%
Dew Point: 48°F
Visibility: 8 Miles
Pressure: 30.06 in.
Flight Rule: IFR
Wind Data
3 MPH
010° North
Cloud Level(s): Broken at 900ft
Current Conditions at
EAST ST LOUIS - (KCPS)
48°
Mostly Clear
as of 10:53 PM CST
Rel. Humidity: 100%
Dew Point: 48°F
Visibility: 9 Miles
Pressure: 30.05 in.
Flight Rule: VFR
Wind Data
6 MPH
010° North
Cloud Level(s): Few at 1500ft
Current Conditions at
ST CHARLES - (KSET)
48°
Cloudy
as of 10:54 PM CST
Rel. Humidity: 93%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 30.05 in.
Flight Rule: MVFR
Wind Data
3 MPH
020° North
Cloud Level(s): Solid Overcast at 1400ft
Cloudy on Tonight Tonight... Cloudy, with a low around 46. North wind 3 to 6 mph.

Cloudy on Wednesday Wednesday... Cloudy, with a high near 59. North wind around 5 mph becoming calm in the morning.

20% chance of rain Wednesday Night Wednesday Night... A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 48. Light southeast wind.

70% chance of thunderstorms Thursday Thursday... Rain likely and possibly a thunderstorm before noon, then rain likely between noon and 3pm, then rain likely and possibly a thunderstorm after 3pm. Cloudy, with a high near 62. South wind 3 to 8 mph. Chance of precipitation is 70%.

60% chance of thunderstorms Thursday Night Thursday Night... Rain likely and possibly a thunderstorm. Cloudy, with a low around 53. Calm wind becoming northeast around 5 mph after midnight. Chance of precipitation is 60%.

80% chance of rain Friday Friday... Rain. High near 60. Chance of precipitation is 80%.

50% chance of rain Friday Night Friday Night... A 50 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 46.

Partly Sunny on Saturday Saturday... Partly sunny, with a high near 60.

Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 41.

Sunny on Sunday Sunday... Sunny, with a high near 63.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 44.

30% chance of rain Monday Monday... A 30 percent chance of rain. Partly sunny, with a high near 62.

40% chance of rain Monday Night Monday Night... A 40 percent chance of rain. Mostly cloudy, with a low around 44.

40% chance of rain Tuesday Tuesday... A 40 percent chance of rain. Mostly cloudy, with a high near 58.

Current Radar Image


Sun Almanac for Hartford, Illinois
Sunrise: 06:48 AM
Sunset: 4:44 PM
Civil Sunrise:06:19 AM
Civil Sunset: 5:13 PM
Nautical Sunrise: 05:47 AM
Nautical Sunset: 5:45 PM
Astro Sunrise: 05:15 AM
Astro Sunset: 6:17 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.