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Union Hill, Illinois Weather Forecast
Union Hill, Illinois Weather
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Weather Forecast for Union Hill, Illinois : St. Clair County
Issued: 5:01 pm CST Dec 17, 2025 Latitude: 38.5881055 Longitude: -90.0059381 View on Google Maps

MouseOver for Detail Forecast
Tonight Thursday Friday Saturday Sunday Monday Tuesday Wednesday
20% chance of rain on Tonight 80% chance of thunderstorms on Thursday Sunny on Friday Mostly Sunny on Saturday Mostly Sunny on Sunday Partly Sunny on Monday 20% chance of rain on Tuesday Mostly Cloudy on Wednesday
Low: 53 °F High: 55 °F High: 39°F High: 56°F High: 43°F High: 47°F High: 59°F High: 59°F
Low: 25°F Low: 33°F Low: 27°F Low: 30°F Low: 42°F Low: 43°F  
Rain Thunderstorms Sunny Mostly Sunny Mostly Sunny Partly Sunny Rain Mostly Cloudy
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Current Conditions at
EAST ST LOUIS - (KCPS)
50°
Clear
as of 4:53 PM CST
Rel. Humidity: 57%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 29.93 in.
Flight Rule: VFR
Wind Data
6 MPH
130° Southeast
Cloud Level(s): Clear
Current Conditions at
SCOTT AFB - (KBLV)
50°
Partly Cloudy
as of 4:55 PM CST
Rel. Humidity: 49%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 29.94 in.
Flight Rule: VFR
Wind Data
2 MPH
190° South
Cloud Level(s): Scattered at 4000ft
Current Conditions at
ALTON - (KALN)
45°
Feels like 39°F
Clear
as of 4:45 PM CST
Rel. Humidity: 61%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 29.94 in.
Flight Rule: VFR
Wind Data
9 MPH
130° Southeast
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
50°
Feels like 45°F
Mostly Clear
as of 4:51 PM CST
Rel. Humidity: 57%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 29.93 in.
Flight Rule: VFR
Wind Data
12 MPH
130° Southeast
Cloud Level(s): Few at 25000ft
20% chance of rain Tonight Tonight... Isolated showers before 3am, then isolated showers after 5am. Increasing clouds, with a temperature rising to around 53 by 5am. South wind 8 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

80% chance of thunderstorms Thursday Thursday... Showers and possibly a thunderstorm before 1pm, then scattered showers between 1pm and 3pm. Temperature rising to near 55 by 9am, then falling to around 46 during the remainder of the day. South wind 14 to 18 mph becoming west in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 80%.

Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 25. Breezy, with a west wind 13 to 21 mph, with gusts as high as 32 mph.

Sunny on Friday Friday... Sunny, with a high near 39. West wind 7 to 11 mph becoming south in the afternoon.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 33. South wind 10 to 14 mph, with gusts as high as 23 mph.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 56.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 27.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 43.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 30.

Partly Sunny on Monday Monday... Partly sunny, with a high near 47.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 42.

20% chance of rain Tuesday Tuesday... A 20 percent chance of rain. Partly sunny, with a high near 59.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 43.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 59.

Current Radar Image


Sun Almanac for Union Hill, Illinois
Sunrise: 07:12 AM
Sunset: 4:41 PM
Civil Sunrise:06:42 AM
Civil Sunset: 5:10 PM
Nautical Sunrise: 06:09 AM
Nautical Sunset: 5:44 PM
Astro Sunrise: 05:37 AM
Astro Sunset: 6:16 PM
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