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Hornsby, Illinois Weather Forecast
Hornsby, Illinois Weather
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Weather Forecast for Hornsby, Illinois : Macoupin County
Issued: 2:21 am CST Dec 21, 2025 Latitude: 39.1706034 Longitude: -89.7450928 View on Google Maps

MouseOver for Detail Forecast
Overnight Sunday Monday Tuesday Wednesday Christmas Day Friday Saturday
Mostly Clear on Overnight Sunny on Sunday Mostly Cloudy on Monday Sunny on Tuesday Cloudy on Wednesday Partly Sunny on Christmas Day Partly Sunny on Friday Mostly Cloudy on Saturday
Low: 23°F High: 41°F High: 48°F High: 58°F High: 64°F High: 69°F High: 56°F High: 53°F
Low: 28°F Low: 41°F Low: 40°F Low: 53°F Low: 45°F Low: 36°F  
Mostly Clear Sunny Mostly Cloudy Sunny Cloudy Partly Sunny Partly Sunny Mostly Cloudy
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Current Conditions at
LITCHFIELD MUNI ARP - (K3LF)
28°
Clear
as of 2:35 AM CST
Rel. Humidity: 68%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.33 in.
Flight Rule: VFR
Wind Data
8 MPH
340° North
Cloud Level(s): Clear
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
TAYLORVILLE MUNICIPAL - (KTAZ)
30°
Clear
as of 2:35 AM CST
Rel. Humidity: 63%
Dew Point: 19°F
Pressure: 30.32 in.
Wind Data
6 MPH
310° Northwest
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
Mostly Clear on Overnight Overnight... Mostly clear, with a low around 23. North wind 3 to 5 mph.
Sunny on Sunday Sunday... Sunny, with a high near 41. Calm wind becoming southeast around 5 mph.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 28. Light southeast wind becoming south 5 to 9 mph in the evening.
Mostly Cloudy on Monday Monday... Sunny through mid morning, then becoming mostly cloudy, with a high near 48. South wind 9 to 11 mph.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 41. South wind 6 to 10 mph.
Sunny on Tuesday Tuesday... Sunny, with a high near 58.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 40.
Cloudy on Wednesday Wednesday... Cloudy, with a high near 64.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 53.
Partly Sunny on Christmas Day Christmas Day... Partly sunny, with a high near 69.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 45.
Partly Sunny on Friday Friday... Partly sunny, with a high near 56.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 36.
Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 53.
Current Radar Image


Sun Almanac for Hornsby, Illinois
Sunrise: 07:15 AM
Sunset: 4:40 PM
Civil Sunrise:06:45 AM
Civil Sunset: 5:10 PM
Nautical Sunrise: 06:11 AM
Nautical Sunset: 5:43 PM
Astro Sunrise: 05:39 AM
Astro Sunset: 6:16 PM
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