National Weather Service forecast
Union, Illinois Weather
Union 7-Day Forecast
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Overnight58°FRain Showers83% chance of precipitation
Rain showers. Cloudy. Low around 58, with temperatures rising to around 61 overnight. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
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Wednesday62°FSlight Chance Rain Showers24% chance of precipitation
A slight chance of rain showers before 1pm. Mostly cloudy. High near 62, with temperatures falling to around 54 in the afternoon. South southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
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Wednesday Night46°FMostly Cloudy then Slight Chance Rain Showers19% chance of precipitation
A slight chance of rain showers after 4am. Mostly cloudy, with a low around 46. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
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Thursday55°FChance Rain Showers51% chance of precipitation
A chance of rain showers. Cloudy, with a high near 55. West southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
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Thursday Night39°FChance Rain Showers then Mostly Cloudy46% chance of precipitation
A chance of rain showers before midnight. Mostly cloudy, with a low around 39. North northwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
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Friday48°FPartly Sunny10% chance of precipitation
Partly sunny, with a high near 48.
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Friday Night31°FPartly Cloudy
Partly cloudy, with a low around 31.
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Saturday50°FSunny
Sunny, with a high near 50.
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Saturday Night32°FMostly Clear
Mostly clear, with a low around 32.
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Sunday55°FSunny6% chance of precipitation
Sunny, with a high near 55.
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Sunday Night34°FMostly Clear
Mostly clear, with a low around 34.
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Monday60°FSunny
Sunny, with a high near 60.
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Monday Night39°FMostly Clear1% chance of precipitation
Mostly clear, with a low around 39.
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Tuesday61°FSunny
Sunny, with a high near 61.
Issued by the National Weather Service (LOT office), updated .
Union Hourly Forecast
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Union Weather Radar
Open the full radar for UnionAbout Union
- Population (2020 Census)
- 551
- Coordinates
- 42.232, -88.545
- Elevation
- 820 ft
- NWS forecast office
- LOT
- Time zone
- America/Chicago
- Sunrise today
- 6:30 AM CST
- Sunset today
- 4:44 PM CST
- Daylight today
- 10 h 14 min
Union Weather Questions
What is the weather forecast for Union, Illinois?
Overnight: Rain showers. Cloudy. Low around 58, with temperatures rising to around 61 overnight. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible. Wednesday: A slight chance of rain showers before 1pm. Mostly cloudy. High near 62, with temperatures falling to around 54 in the afternoon. South southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Will it rain or snow in Union this week?
The best chance of precipitation is Overnight at 83%. Periods with a 30% chance or more: Overnight (83%), Thursday (51%), Thursday Night (46%).
How warm and how cold will it get in Union this week?
The warmest day is Wednesday, with a high near 62°F. The coldest night is Friday Night, with a low near 31°F.
What time are sunrise and sunset in Union today?
Sunrise is at 6:30 AM CST and sunset is at 4:44 PM CST, for 10 h 14 min of daylight.
Weather near Union
- Coral 1 mi
- Marengo 3 mi
- Franklinville 3 mi
- Riley 5 mi
- Harmony 5 mi
- Huntley 7 mi
- Woodstock 8 mi
- Lakewood 8 mi