Alto Pass, Illinois Weather
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Weather Forecast for Alto Pass, Illinois : Union County
Issued: 6:17 pm CDT Jun 16, 2025 Latitude: 37.5703276 Longitude: -89.3175879 View on Google Maps

MouseOver for Detail Forecast
Tonight Tuesday Wednesday Juneteenth Friday Saturday Sunday Monday
70% chance of thunderstorms on Tonight 40% chance of thunderstorms on Tuesday 60% chance of thunderstorms on Wednesday 10% chance of thunderstorms on Juneteenth Sunny on Friday Sunny on Saturday Sunny on Sunday 20% chance of thunderstorms on Monday
Low: 70°F High: 85°F High: 86°F High: 84°F High: 88°F High: 91°F High: 92°F High: 92°F
Low: 73°F Low: 70°F Low: 68°F Low: 73°F Low: 76°F Low: 75°F  
Thunderstorms Thunderstorms Thunderstorms Thunderstorms Sunny Sunny Sunny Thunderstorms
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Current Conditions at
CAIRO - (KCIR)
77°
Mostly Cloudy
as of 7:55 PM CDST
Rel. Humidity: 83%
Dew Point: 72°F
Visibility: 10 Miles
Pressure: 29.89 in.
Flight Rule: VFR
Wind Data
17 MPH
Gust: 22 MPH
180° South
Cloud Level(s): Broken at 3300ft, Broken at 3900ft, Broken at 4900ft
70% chance of thunderstorms Tonight Tonight... Showers likely and possibly a thunderstorm before 10pm, then a chance of showers and thunderstorms, mainly between 10pm and 4am. Mostly cloudy, with a low around 70. Light south southeast wind. Chance of precipitation is 70%.
40% chance of thunderstorms Tuesday Tuesday... A 40 percent chance of showers and thunderstorms, mainly after 7am. Cloudy through mid morning, then gradual clearing, with a high near 85. South southwest wind 3 to 6 mph.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 73. South wind 6 to 8 mph.
60% chance of thunderstorms Wednesday Wednesday... A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 86. South southwest wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
70% chance of thunderstorms Wednesday Night Wednesday Night... Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70. South southwest wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.
10% chance of thunderstorms Juneteenth Juneteenth... A slight chance of thunderstorms before 7am. Mostly sunny, with a high near 84. West northwest wind 3 to 6 mph. Chance of precipitation is 10%.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 68. Calm wind.
Sunny on Friday Friday... Sunny, with a high near 88. Calm wind becoming south 5 to 7 mph in the morning.
Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 73. South wind around 7 mph.
Sunny on Saturday Saturday... Sunny, with a high near 91. South southwest wind 7 to 10 mph, with gusts as high as 18 mph.
Clear on Saturday Night Saturday Night... Clear, with a low around 76. South southwest wind 6 to 8 mph.
Sunny on Sunday Sunday... Sunny, with a high near 92. South southwest wind 6 to 8 mph.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 75. South wind around 6 mph.
20% chance of thunderstorms Monday Monday... A chance of showers and thunderstorms. Sunny, with a high near 92. South wind 5 to 8 mph.
Current Radar Image


Sun Almanac for Alto Pass, Illinois
Sunrise: 05:36 AM
Sunset: 8:21 PM
Civil Sunrise:05:04 AM
Civil Sunset: 8:52 PM
Nautical Sunrise: 04:25 AM
Nautical Sunset: 9:31 PM
Astro Sunrise: 03:41 AM
Astro Sunset: 10:15 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.