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Troy, Illinois Weather Forecast
Troy, Illinois Weather
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Weather Forecast for Troy, Illinois : Madison County
Issued: 5:11 pm CST Dec 30, 2025 Latitude: 38.7292147 Longitude: -89.8831541 View on Google Maps

MouseOver for Detail Forecast
Tonight Wednesday New Year's Day Friday Saturday Sunday Monday Tuesday
Mostly Clear on Tonight Increasing Clouds on Wednesday Mostly Sunny on New Year's Day Mostly Cloudy on Friday Mostly Sunny on Saturday Mostly Sunny on Sunday Mostly Sunny on Monday Mostly Sunny on Tuesday
Low: 27°F High: 42°F High: 37°F High: 42°F High: 40°F High: 47°F High: 50°F High: 46°F
Low: 24°F Low: 28°F Low: 24°F Low: 25°F Low: 34°F Low: 30°F  
Mostly Clear Increasing Clouds Mostly Sunny Mostly Cloudy Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
SCOTT AFB - (KBLV)
28°
Clear
as of 8:55 PM CST
Rel. Humidity: 54%
Dew Point: 14°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
3 MPH
210° Southwest
Cloud Level(s): Clear
Current Conditions at
EAST ST LOUIS - (KCPS)
30°
Clear
as of 8:53 PM CST
Rel. Humidity: 46%
Dew Point: 12°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
3 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
30°
Mostly Clear
as of 8:51 PM CST
Rel. Humidity: 50%
Dew Point: 14°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
7 MPH
230° Southwest
Cloud Level(s): Few at 25000ft
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 27. West wind around 9 mph.

Increasing Clouds on Wednesday Wednesday... Increasing clouds, with a high near 42. West wind 7 to 11 mph, with gusts as high as 20 mph.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 24. West wind 5 to 7 mph becoming light and variable.

Mostly Sunny on New Year's Day New Year's Day... Mostly sunny, with a high near 37. Northeast wind around 5 mph becoming calm in the afternoon.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 28. Calm wind.

Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 42.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 24.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 40.

Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 25.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 47.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 34.

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 50.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 30.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 46.

Current Radar Image


Sun Almanac for Troy, Illinois
Sunrise: 07:17 AM
Sunset: 4:47 PM
Civil Sunrise:06:48 AM
Civil Sunset: 5:17 PM
Nautical Sunrise: 06:14 AM
Nautical Sunset: 5:50 PM
Astro Sunrise: 05:42 AM
Astro Sunset: 6:23 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.