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Troy, Illinois Weather Forecast
Troy, Illinois Weather
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Weather Forecast for Troy, Illinois : Madison County
Issued: 9:56 pm CST Jan 16, 2026 Latitude: 38.7292147 Longitude: -89.8831541 View on Google Maps

MouseOver for Detail Forecast
Tonight Saturday Sunday M.L.King Day Tuesday Wednesday Thursday Friday
20% chance of snow on Tonight Partly Sunny on Saturday Increasing Clouds on Sunday Sunny on M.L.King Day Mostly Sunny on Tuesday Mostly Sunny on Wednesday 20% chance of rain on Thursday 20% chance of rain on Friday
Low: 21°F High: 26°F High: 32°F High: 22°F High: 36°F High: 49°F High: 36°F High: 39°F
Low: 11°F Low: 13°F Low: 10°F Low: 26°F Low: 23°F Low: 23°F  
Snow Partly Sunny Increasing Clouds Sunny Mostly Sunny Mostly Sunny Rain Rain
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Current Conditions at
SCOTT AFB - (KBLV)
34°
Feels like 24°F
Partly Cloudy
as of 9:55 PM CST
Rel. Humidity: 86%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 29.88 in.
Flight Rule: VFR
Wind Data
13 MPH
260° West
Cloud Level(s): Few at 6500ft, Scattered at 10000ft
Current Conditions at
ALTON - (KALN)
34°
Feels like 22°F
Cloudy
as of 9:50 PM CST
Rel. Humidity: 64%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 29.88 in.
Flight Rule: VFR
Wind Data
20 MPH
Gust: 23 MPH
280° West
Cloud Level(s): Scattered at 2700ft, Broken at 6500ft, Solid Overcast at 8000ft
Current Conditions at
EAST ST LOUIS - (KCPS)
34°
Feels like 23°F
Clear
as of 9:53 PM CST
Rel. Humidity: 55%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 29.90 in.
Flight Rule: VFR
Wind Data
15 MPH
Gust: 25 MPH
290° West
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
34°
Feels like 23°F
Mostly Cloudy
as of 9:51 PM CST
Rel. Humidity: 50%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 29.90 in.
Flight Rule: VFR
Wind Data
15 MPH
Gust: 29 MPH
290° West
Cloud Level(s): Few at 6500ft, Broken at 9000ft
20% chance of snow Tonight Tonight... A 20 percent chance of snow before 3am. Partly cloudy, with a low around 21. West wind 10 to 15 mph, with gusts as high as 28 mph.
Partly Sunny on Saturday Saturday... Partly sunny, with a high near 26. West wind 11 to 18 mph, with gusts as high as 25 mph.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 11. West wind 6 to 13 mph.
Increasing Clouds on Sunday Sunday... Increasing clouds, with a high near 32. Southwest wind 6 to 14 mph, with gusts as high as 21 mph.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 13. Southwest wind 9 to 16 mph becoming northwest after midnight. Winds could gust as high as 24 mph.
Sunny on M.L.King Day M.L.King Day... Sunny, with a high near 22.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 10.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 36.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 26.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 49.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 23.
20% chance of rain Thursday Thursday... A 20 percent chance of rain. Mostly sunny, with a high near 36.
30% chance of freezing rain Thursday Night Thursday Night... A chance of rain or freezing rain. Partly cloudy, with a low around 23. Chance of precipitation is 30%.
20% chance of rain Friday Friday... A 20 percent chance of rain. Mostly sunny, with a high near 39.
Current Radar Image


Sun Almanac for Troy, Illinois
Sunrise: 07:16 AM
Sunset: 5:03 PM
Civil Sunrise:06:47 AM
Civil Sunset: 5:32 PM
Nautical Sunrise: 06:14 AM
Nautical Sunset: 6:05 PM
Astro Sunrise: 05:42 AM
Astro Sunset: 6:37 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.