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Hartford, Illinois Weather Forecast
Hartford, Illinois Weather
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Weather Forecast for Hartford, Illinois : Madison County
Issued: 10:31 pm CST Jan 2, 2026 Latitude: 38.8333815 Longitude: -90.09594 View on Google Maps

MouseOver for Detail Forecast
Tonight Saturday Sunday Monday Tuesday Wednesday Thursday Friday
Mostly Cloudy on Tonight Clearing on Saturday Increasing Clouds on Sunday Sunny on Monday Mostly Sunny on Tuesday Partly Sunny on Wednesday 50% chance of rain on Thursday 20% chance of rain on Friday
Low: 26°F High: 40°F High: 40°F High: 57°F High: 61°F High: 60°F High: 62°F High: 59°F
Low: 24°F Low: 31°F Low: 43°F Low: 39°F Low: 46°F Low: 47°F  
Mostly Cloudy Clearing Increasing Clouds Sunny Mostly Sunny Partly Sunny Rain Rain
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Current Conditions at
ALTON - (KALN)
30°
Cloudy
as of 10:35 PM CST
Rel. Humidity: 74%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
3 MPH
050° Northeast
Cloud Level(s): Solid Overcast at 10000ft
Current Conditions at
ST LOUIS - (KSTL)
30°
Feels like 21°F
Cloudy
as of 9:51 PM CST
Rel. Humidity: 74%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
9 MPH
060° Northeast
Cloud Level(s): Solid Overcast at 10000ft
Current Conditions at
EAST ST LOUIS - (KCPS)
32°
Cloudy
as of 9:53 PM CST
Rel. Humidity: 68%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
8 MPH
050° Northeast
Cloud Level(s): Solid Overcast at 11000ft
Current Conditions at
ST CHARLES - (KSET)
Clear
as of 9:54 PM CST
Pressure: 30.00 in.
Wind Data
Calm
Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 26. Northeast wind 3 to 5 mph.
Clearing on Saturday Saturday... Mostly cloudy through mid morning, then gradual clearing, with a high near 40. Northwest wind 3 to 8 mph.
Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 24. Northwest wind around 6 mph becoming calm after midnight.
Increasing Clouds on Sunday Sunday... Increasing clouds, with a high near 40. Calm wind becoming southeast around 6 mph in the afternoon.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 31. South wind around 7 mph.
Sunny on Monday Monday... Sunny, with a high near 57.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 43.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 61.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 39.
Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 60.
20% chance of rain Wednesday Night Wednesday Night... A 20 percent chance of rain. Mostly cloudy, with a low around 46.
50% chance of rain Thursday Thursday... A 50 percent chance of rain. Partly sunny, with a high near 62.
40% chance of rain Thursday Night Thursday Night... A 40 percent chance of rain. Partly cloudy, with a low around 47.
20% chance of rain Friday Friday... A 20 percent chance of rain. Partly sunny, with a high near 59.
Current Radar Image


Sun Almanac for Hartford, Illinois
Sunrise: 07:19 AM
Sunset: 4:51 PM
Civil Sunrise:06:49 AM
Civil Sunset: 5:21 PM
Nautical Sunrise: 06:16 AM
Nautical Sunset: 5:54 PM
Astro Sunrise: 05:44 AM
Astro Sunset: 6:26 PM
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