Alto Pass, Illinois Weather
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Weather Forecast for Alto Pass, Illinois : Union County
Issued: 11:02 pm CDT May 31, 2025 Latitude: 37.5703276 Longitude: -89.3175879 View on Google Maps

MouseOver for Detail Forecast
Tonight Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Increasing Clouds on Tonight 20% chance of thunderstorms on Sunday Sunny on Monday Sunny on Tuesday 20% chance of thunderstorms on Wednesday 20% chance of thunderstorms on Thursday 20% chance of thunderstorms on Friday 20% chance of thunderstorms on Saturday
Low: 61°F High: 81°F High: 84°F High: 87°F High: 85°F High: 80°F High: 81°F High: 80°F
Low: 60°F Low: 66°F Low: 72°F Low: 70°F Low: 65°F Low: 65°F  
Increasing Clouds Thunderstorms Sunny Sunny Thunderstorms Thunderstorms Thunderstorms Thunderstorms
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Current Conditions at
CARBONDALE - (KMDH)
66°
Clear
as of 10:52 PM CDST
Rel. Humidity: 72%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 29.83 in.
Flight Rule: VFR
Wind Data
5 MPH
240° Southwest
Cloud Level(s): Clear
Current Conditions at
CAPE GIRARDEAU - (KCGI)
66°
Clear
as of 10:53 PM CDST
Rel. Humidity: 82%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 29.84 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
CAIRO - (KCIR)
70°
Clear
as of 11:35 PM CDST
Rel. Humidity: 73%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 29.85 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Increasing Clouds on Tonight Tonight... Increasing clouds, with a low around 61. Calm wind becoming west southwest around 5 mph.
20% chance of thunderstorms Sunday Sunday... Isolated showers and thunderstorms between 1pm and 4pm. Mostly sunny, with a high near 81. Light and variable wind. Chance of precipitation is 20%.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 60. Light and variable wind becoming east southeast around 5 mph.
Sunny on Monday Monday... Sunny, with a high near 84. Calm wind becoming south southeast around 6 mph in the morning.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 66. South southeast wind around 6 mph.
Sunny on Tuesday Tuesday... Sunny, with a high near 87. South wind 7 to 13 mph, with gusts as high as 22 mph.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 72. South wind around 10 mph, with gusts as high as 20 mph.
20% chance of thunderstorms Wednesday Wednesday... A chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 85. South southwest wind 10 to 13 mph, with gusts as high as 22 mph.
20% chance of thunderstorms Wednesday Night Wednesday Night... A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. South wind 6 to 8 mph.
20% chance of thunderstorms Thursday Thursday... A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 80. South wind 6 to 8 mph.
Thunderstorms on Thursday Night Thursday Night... Showers and thunderstorms likely. Mostly cloudy, with a low around 65. West southwest wind around 6 mph.
20% chance of thunderstorms Friday Friday... A chance of showers and thunderstorms. Mostly cloudy, with a high near 81. West wind around 6 mph.
20% chance of thunderstorms Friday Night Friday Night... A chance of showers and thunderstorms. Partly cloudy, with a low around 65. Northwest wind around 5 mph becoming light and variable in the evening.
20% chance of thunderstorms Saturday Saturday... A chance of showers and thunderstorms. Partly sunny, with a high near 80. South southeast wind around 6 mph becoming southwest in the afternoon.
Current Radar Image


Sun Almanac for Alto Pass, Illinois
Sunrise: 05:37 AM
Sunset: 8:13 PM
Civil Sunrise:05:07 AM
Civil Sunset: 8:44 PM
Nautical Sunrise: 04:29 AM
Nautical Sunset: 9:22 PM
Astro Sunrise: 03:46 AM
Astro Sunset: 10:04 PM
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