Troy, Illinois Weather
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Weather Forecast for Troy, Illinois : Madison County
Issued: 3:22 am CDT Jun 4, 2025 Latitude: 38.7292147 Longitude: -89.8831541 View on Google Maps

MouseOver for Detail Forecast
Overnight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
50% chance of thunderstorms on Overnight 80% chance of thunderstorms on Wednesday 40% chance of thunderstorms on Thursday 70% chance of thunderstorms on Friday 20% chance of rain on Saturday 30% chance of rain on Sunday 20% chance of rain on Monday Sunny on Tuesday
Low: 69°F High: 79°F High: 78°F High: 80°F High: 80°F High: 83°F High: 80°F High: 81°F
Low: 66°F Low: 67°F Low: 64°F Low: 62°F Low: 64°F Low: 60°F  
Thunderstorms Thunderstorms Thunderstorms Thunderstorms Rain Rain Rain Sunny
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Current Conditions at
SCOTT AFB - (KBLV)
72°
Mostly Cloudy
as of 4:55 AM CDST
Rel. Humidity: 88%
Dew Point: 68°F
Visibility: 10 Miles
Pressure: 29.94 in.
Flight Rule: VFR
Wind Data
5 MPH
230° Southwest
Cloud Level(s): Broken at 4000ft
Current Conditions at
ALTON - (KALN)
68°
Cloudy
Rain
as of 5:15 AM CDST
Rel. Humidity: 100%
Dew Point: 68°F
Visibility: 10 Miles
Pressure: 29.95 in.
Flight Rule: VFR
Wind Data
5 MPH
200° South
Cloud Level(s): Solid Overcast at 5000ft
Current Conditions at
EAST ST LOUIS - (KCPS)
68°
Cloudy
as of 4:53 AM CDST
Rel. Humidity: 93%
Dew Point: 66°F
Visibility: 10 Miles
Pressure: 29.94 in.
Flight Rule: VFR
Wind Data
3 MPH
140° Southeast
Cloud Level(s): Solid Overcast at 4500ft
Current Conditions at
ST LOUIS - (KSTL)
70°
Cloudy
Light Rain
as of 4:51 AM CDST
Rel. Humidity: 83%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 29.94 in.
Flight Rule: VFR
Wind Data
6 MPH
170° South
Cloud Level(s): Broken at 5500ft, Solid Overcast at 7000ft
50% chance of thunderstorms Overnight Overnight... A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South wind around 8 mph.
80% chance of thunderstorms Wednesday Wednesday... Showers and thunderstorms likely, then showers and possibly a thunderstorm after noon. High near 79. South wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.
70% chance of thunderstorms Wednesday Night Wednesday Night... Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 2am, then a chance of showers and thunderstorms after 2am. Cloudy, with a low around 66. West wind around 6 mph becoming light and variable. Chance of precipitation is 70%.
40% chance of thunderstorms Thursday Thursday... A 40 percent chance of showers and thunderstorms. Cloudy, with a high near 78. North wind around 7 mph.
40% chance of thunderstorms Thursday Night Thursday Night... A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 67. East wind around 5 mph becoming calm in the evening.
70% chance of thunderstorms Friday Friday... Showers likely and possibly a thunderstorm before 7am, then showers likely between 7am and 10am, then showers likely and possibly a thunderstorm after 10am. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.
30% chance of thunderstorms Friday Night Friday Night... A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 64. Chance of precipitation is 30%.
20% chance of rain Saturday Saturday... A 20 percent chance of showers. Mostly sunny, with a high near 80.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 62.
30% chance of rain Sunday Sunday... A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 83.
20% chance of thunderstorms Sunday Night Sunday Night... A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64.
20% chance of rain Monday Monday... A 20 percent chance of showers. Sunny, with a high near 80.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 60.
Sunny on Tuesday Tuesday... Sunny, with a high near 81.
Current Radar Image


Sun Almanac for Troy, Illinois
Sunrise: 05:35 AM
Sunset: 8:21 PM
Civil Sunrise:05:04 AM
Civil Sunset: 8:52 PM
Nautical Sunrise: 04:24 AM
Nautical Sunset: 9:32 PM
Astro Sunrise: 03:40 AM
Astro Sunset: 10:16 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.