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Union, Wisconsin Weather Forecast
Union, Wisconsin Weather
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Weather Forecast for Union, Wisconsin : Grant County
Issued: 9:06 am CST Dec 7, 2025 Latitude: 42.8302694 Longitude: -90.5262388 View on Google Maps

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Today Tonight Monday Tuesday Wednesday Thursday Friday Saturday
Sunny on Today Increasing Clouds on Tonight Mostly Cloudy on Monday 20% chance of rain on Tuesday Mostly Cloudy on Wednesday 30% chance of snow on Thursday Partly Sunny on Friday Partly Sunny on Saturday
High: 9 °F Low: 1 °F High: 22°F High: 37°F High: 31°F High: 22°F High: 11°F High: 8 °F
Low: 15°F Low: 26°F Low: 11°F Low: 2 °F Low: -5°F  
Sunny Increasing Clouds Mostly Cloudy Rain Mostly Cloudy Snow Partly Sunny Partly Sunny
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Current Conditions at
BOSCOBEL - (KOVS)
14°
Clear
as of 9:53 AM CST
Rel. Humidity: 56%
Dew Point: 1°F
Visibility: 10 Miles
Pressure: 30.29 in.
Flight Rule: VFR
Wind Data
7 MPH
350° North
Cloud Level(s): Clear
Current Conditions at
LONE ROCK - (KLNR)
12°
Feels like -1°F
Clear
as of 9:56 AM CST
Rel. Humidity: 61%
Dew Point: 1°F
Visibility: 10 Miles
Pressure: 30.28 in.
Flight Rule: VFR
Wind Data
12 MPH
330° Northwest
Cloud Level(s): Clear
Current Conditions at
DUBUQUE - (KDBQ)
18°
Feels like 3°F
Partly Cloudy
as of 10:34 AM CST
Rel. Humidity: 72%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 30.22 in.
Flight Rule: VFR
Wind Data
14 MPH
020° North
Cloud Level(s): Scattered at 1100ft
Sunny on Today Today... Sunny, with a temperature falling to around 9 by 5pm. Wind chill values as low as -1. North wind 6 to 10 mph, with gusts as high as 18 mph.

Increasing Clouds on Tonight Tonight... Increasing clouds, with a low around 1. North wind around 5 mph becoming calm in the evening.

Mostly Cloudy on Monday Monday... Mostly cloudy, with a high near 22. Light southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 18 mph.

20% chance of snow Monday Night Monday Night... A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 15. South wind 10 to 14 mph, with gusts as high as 24 mph.

20% chance of rain Tuesday Tuesday... A 20 percent chance of rain after noon. Mostly cloudy, with a high near 37. Southwest wind 9 to 11 mph, with gusts as high as 22 mph.

80% chance of rain & snow Tuesday Night Tuesday Night... Rain before 3am, then a chance of snow. Low around 26. Breezy, with a south wind 13 to 17 mph becoming west after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 31. Blustery, with a northwest wind 11 to 17 mph, with gusts as high as 28 mph.

20% chance of snow Wednesday Night Wednesday Night... A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 11. Northwest wind 6 to 10 mph, with gusts as high as 18 mph.

30% chance of snow Thursday Thursday... A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 22. North wind 6 to 9 mph.

30% chance of snow Thursday Night Thursday Night... A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 2. Northwest wind 8 to 10 mph.

Partly Sunny on Friday Friday... Partly sunny, with a high near 11. Northwest wind 10 to 15 mph, with gusts as high as 23 mph.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around -5. Northwest wind 9 to 13 mph, with gusts as high as 21 mph.

Partly Sunny on Saturday Saturday... Partly sunny, with a high near 8. Northwest wind around 10 mph.

Current Radar Image


Sun Almanac for Union, Wisconsin
Sunrise: 07:20 AM
Sunset: 4:28 PM
Civil Sunrise:06:48 AM
Civil Sunset: 5:00 PM
Nautical Sunrise: 06:12 AM
Nautical Sunset: 5:35 PM
Astro Sunrise: 05:38 AM
Astro Sunset: 6:10 PM
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