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Hartford, Illinois Weather Forecast
Hartford, Illinois Weather
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Weather Forecast for Hartford, Illinois : Madison County
Issued: 10:51 pm CST Dec 27, 2025 Latitude: 38.8333815 Longitude: -90.09594 View on Google Maps

MouseOver for Detail Forecast
Tonight Sunday Monday Tuesday Wednesday New Year's Day Friday Saturday
20% chance of rain on Tonight 70% chance of thunderstorms on Sunday Mostly Sunny on Monday Sunny on Tuesday Mostly Sunny on Wednesday Mostly Sunny on New Year's Day Partly Sunny on Friday Mostly Cloudy on Saturday
Low: 61°F High: 68 °F High: 28°F High: 34°F High: 44°F High: 39°F High: 42°F High: 47°F
Low: 19°F Low: 17°F Low: 26°F Low: 26°F Low: 19°F Low: 29°F  
Rain Thunderstorms Mostly Sunny Sunny Mostly Sunny Mostly Sunny Partly Sunny Mostly Cloudy
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Current Conditions at
ALTON - (KALN)
63°
Partly Cloudy
as of 10:55 PM CST
Rel. Humidity: 88%
Dew Point: 59°F
Visibility: 10 Miles
Pressure: 29.76 in.
Flight Rule: VFR
Wind Data
9 MPH
180° South
Cloud Level(s): Scattered at 1400ft, Scattered at 12000ft
Current Conditions at
ST LOUIS - (KSTL)
63°
Mostly Clear
as of 10:51 PM CST
Rel. Humidity: 88%
Dew Point: 59°F
Visibility: 10 Miles
Pressure: 29.75 in.
Flight Rule: VFR
Wind Data
7 MPH
180° South
Cloud Level(s): Few at 10000ft
Current Conditions at
ST CHARLES - (KSET)
57°
Clear
as of 10:54 PM CST
Rel. Humidity: 93%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 29.73 in.
Flight Rule: VFR
Wind Data
5 MPH
110° East
Cloud Level(s): Clear
20% chance of rain Tonight Tonight... A 20 percent chance of showers before 5am. Cloudy, with a steady temperature around 61. South wind around 10 mph.

70% chance of thunderstorms Sunday Sunday... A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. Cloudy, with a temperature rising to near 68 by noon, then falling to around 50 during the remainder of the day. Breezy, with a south wind 10 to 15 mph becoming west 20 to 25 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 70%.

20% chance of rain Sunday Night Sunday Night... A 20 percent chance of showers before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 19. Breezy, with a west wind 24 to 26 mph, with gusts as high as 39 mph.

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 28. Breezy, with a northwest wind 17 to 24 mph, with gusts as high as 33 mph.

Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 17. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

Sunny on Tuesday Tuesday... Sunny, with a high near 34.

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

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 44.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 26.

Mostly Sunny on New Year's Day New Year's Day... Mostly sunny, with a high near 39.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 19.

Partly Sunny on Friday Friday... Partly sunny, with a high near 42.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 29.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 47.

Current Radar Image


Sun Almanac for Hartford, Illinois
Sunrise: 07:18 AM
Sunset: 4:46 PM
Civil Sunrise:06:48 AM
Civil Sunset: 5:16 PM
Nautical Sunrise: 06:15 AM
Nautical Sunset: 5:50 PM
Astro Sunrise: 05:42 AM
Astro Sunset: 6:22 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.