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North Alton, Illinois Weather Forecast
North Alton, Illinois Weather
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Weather Forecast for North Alton, Illinois : Madison County
Issued: 2:21 am CST Dec 21, 2025 Latitude: 38.9222701 Longitude: -90.196499 View on Google Maps

MouseOver for Detail Forecast
Overnight Sunday Monday Tuesday Wednesday Christmas Day Friday Saturday
Mostly Clear on Overnight Sunny on Sunday Increasing Clouds on Monday Sunny on Tuesday Cloudy on Wednesday Partly Sunny on Christmas Day Partly Sunny on Friday Mostly Cloudy on Saturday
Low: 26°F High: 43°F High: 51°F High: 61°F High: 66°F High: 72°F High: 59°F High: 55°F
Low: 30°F Low: 43°F Low: 44°F Low: 55°F Low: 47°F Low: 38°F  
Mostly Clear Sunny Increasing Clouds Sunny Cloudy Partly Sunny Partly Sunny Mostly Cloudy
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Current Conditions at
ALTON - (KALN)
34°
Clear
as of 2:35 AM CST
Rel. Humidity: 50%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.32 in.
Flight Rule: VFR
Wind Data
5 MPH
350° North
Cloud Level(s): Clear
Current Conditions at
ST CHARLES - (KSET)
36°
Clear
as of 1:54 AM CST
Rel. Humidity: 47%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.32 in.
Flight Rule: VFR
Wind Data
5 MPH
290° West
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
34°
Partly Cloudy
as of 1:51 AM CST
Rel. Humidity: 50%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.32 in.
Flight Rule: VFR
Wind Data
5 MPH
330° Northwest
Cloud Level(s): Scattered at 25000ft
Current Conditions at
EAST ST LOUIS - (KCPS)
30°
Clear
as of 1:53 AM CST
Rel. Humidity: 58%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.31 in.
Flight Rule: VFR
Wind Data
3 MPH
0° North
Cloud Level(s): Clear
Mostly Clear on Overnight Overnight... Mostly clear, with a low around 26. North wind around 6 mph.
Sunny on Sunday Sunday... Sunny, with a high near 43. Light and variable wind becoming east around 6 mph in the morning.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 30. Southeast wind 6 to 8 mph.
Increasing Clouds on Monday Monday... Increasing clouds, with a high near 51. South wind 8 to 10 mph.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 43. South wind 6 to 9 mph.
Sunny on Tuesday Tuesday... Sunny, with a high near 61.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 44.
Cloudy on Wednesday Wednesday... Cloudy, with a high near 66.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 55.
Partly Sunny on Christmas Day Christmas Day... Partly sunny, with a high near 72.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 47.
Partly Sunny on Friday Friday... Partly sunny, with a high near 59.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 38.
Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 55.
Current Radar Image


Sun Almanac for North Alton, Illinois
Sunrise: 07:16 AM
Sunset: 4:42 PM
Civil Sunrise:06:46 AM
Civil Sunset: 5:12 PM
Nautical Sunrise: 06:13 AM
Nautical Sunset: 5:46 PM
Astro Sunrise: 05:40 AM
Astro Sunset: 6:18 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.