Hartford, Illinois Weather
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Weather Forecast for Hartford, Illinois : Williamson County
Issued: 6:03 am CDT May 11, 2025 Latitude: 37.8047708 Longitude: -88.6656128 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Monday Tuesday Wednesday Thursday Friday Saturday
Mostly Cloudy on Today 60% chance of thunderstorms on Tonight 90% chance of thunderstorms on Monday 70% chance of thunderstorms on Tuesday Sunny on Wednesday Mostly Sunny on Thursday 10% chance of on Friday 20% chance of thunderstorms on Saturday
High: 78°F Low: 61°F High: 74°F High: 77°F High: 83°F High: 89°F High: 85°F High: 82°F
Low: 60°F Low: 61°F Low: 67°F Low: 68°F Low: 64°F  
Mostly Cloudy Thunderstorms Thunderstorms Thunderstorms Sunny Mostly Sunny Partly Sunny Thunderstorms
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Current Conditions at
HARRISBURG-RALEIGH - (KHSB)
57°
Clear
as of 7:15 AM CDST
Rel. Humidity: 76%
Dew Point: 50°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
7 MPH
030° Northeast
Cloud Level(s): Clear
Current Conditions at
MARION - (KMWA)
54°
Mostly Cloudy
as of 6:47 AM CDST
Rel. Humidity: 87%
Dew Point: 50°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
6 MPH
030° Northeast
Cloud Level(s): Broken at 14000ft
Current Conditions at
CARBONDALE - (KMDH)
54°
Clear
as of 6:52 AM CDST
Rel. Humidity: 93%
Dew Point: 52°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
MT VERNON - (KMVN)
54°
Clear
as of 6:56 AM CDST
Rel. Humidity: 76%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 30.17 in.
Flight Rule: VFR
Wind Data
5 MPH
040° Northeast
Mostly Cloudy on Today Today... Mostly cloudy, then gradually becoming sunny, with a high near 78. East northeast wind 5 to 10 mph, with gusts as high as 18 mph.
60% chance of thunderstorms Tonight Tonight... A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 61. East wind 3 to 7 mph. Chance of precipitation is 60%.
90% chance of thunderstorms Monday Monday... Showers likely and possibly a thunderstorm before 7am, then showers likely between 7am and 10am, then showers and possibly a thunderstorm after 10am. High near 74. East wind 5 to 7 mph. Chance of precipitation is 90%.
20% chance of thunderstorms Monday Night Monday Night... A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 60. Light southeast wind. Chance of precipitation is 20%.
70% chance of thunderstorms Tuesday Tuesday... A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 77. Light south wind. Chance of precipitation is 70%.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 61. Calm wind.
Sunny on Wednesday Wednesday... Sunny, with a high near 83. Calm wind becoming south 5 to 8 mph in the morning.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 67. South southeast wind around 6 mph.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 89. South southwest wind 6 to 14 mph, with gusts as high as 22 mph.
10% chance of thunderstorms Thursday Night Thursday Night... A slight chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 68. West wind 6 to 10 mph, with gusts as high as 18 mph.
10% chance of Friday Friday... A slight chance of showers. Partly sunny, with a high near 85. Southwest wind 5 to 8 mph.
20% chance of thunderstorms Friday Night Friday Night... A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Southwest wind 3 to 6 mph.
20% chance of thunderstorms Saturday Saturday... A chance of showers and thunderstorms. Mostly sunny, with a high near 82. West wind 5 to 8 mph.
Current Radar Image


Sun Almanac for Hartford, Illinois
Sunrise: 05:48 AM
Sunset: 7:54 PM
Civil Sunrise:05:19 AM
Civil Sunset: 8:23 PM
Nautical Sunrise: 04:43 AM
Nautical Sunset: 8:59 PM
Astro Sunrise: 04:04 AM
Astro Sunset: 9:38 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.