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Union, Tennessee Weather Forecast
Union, Tennessee Weather
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Weather Forecast for Union, Tennessee : Warren County
Issued: 6:31 pm CST Dec 16, 2025 Latitude: 35.7128474 Longitude: -85.7010914 View on Google Maps

MouseOver for Detail Forecast
Tonight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Mostly Cloudy on Tonight 20% chance of rain on Wednesday 90% chance of rain on Thursday Sunny on Friday Sunny on Saturday 20% chance of on Sunday Partly Sunny on Monday 20% chance of on Tuesday
Low: 34°F High: 54°F High: 59°F High: 41°F High: 57°F High: 56°F High: 60°F High: 59°F
Low: 41°F Low: 29°F Low: 28°F Low: 42°F Low: 39°F Low: 44°F  
Mostly Cloudy Rain Rain Sunny Sunny Partly Sunny Partly Sunny Partly Sunny
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Current Conditions at
CROSSVILLE - (KCSV)
41°
Clear
as of 7:53 PM CST
Rel. Humidity: 30%
Dew Point: 12°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
6 MPH
180° South
Cloud Level(s): Clear
Current Conditions at
SMYRNA - (KMQY)
43°
Clear
as of 7:56 PM CST
Rel. Humidity: 35%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
6 MPH
170° South
Cloud Level(s): Clear
Current Conditions at
CHATTANOOGA - (KCHA)
36°
Partly Cloudy
as of 8:53 PM EST
Rel. Humidity: 55%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.20 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Scattered at 25000ft
Current Conditions at
NASHVILLE - (KBNA)
45°
Feels like 39°F
Clear
as of 7:53 PM CST
Rel. Humidity: 30%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
10 MPH
150° Southeast
Cloud Level(s): Clear
Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 34. South wind around 5 mph.
20% chance of rain Wednesday Wednesday... A slight chance of showers between 10am and 11am. Cloudy, then gradually becoming mostly sunny, with a high near 54. Southwest wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 20%.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 41. Calm wind becoming south around 5 mph after midnight.
90% chance of rain Thursday Thursday... Showers, mainly after noon. High near 59. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
80% chance of thunderstorms Thursday Night Thursday Night... Showers and possibly a thunderstorm before 9pm, then showers between 9pm and midnight. Low around 29. South wind 10 to 15 mph becoming west northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%.
Sunny on Friday Friday... Sunny, with a high near 41. West northwest wind 5 to 10 mph becoming light west in the afternoon.
Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 28. Calm wind becoming south southeast around 5 mph.
Sunny on Saturday Saturday... Sunny, with a high near 57. South wind 5 to 10 mph, with gusts as high as 20 mph.
20% chance of rain Saturday Night Saturday Night... A 20 percent chance of showers after midnight. Partly cloudy, with a low around 42. South wind 5 to 10 mph, with gusts as high as 20 mph.
20% chance of Sunday Sunday... A 20 percent chance of showers. Partly sunny, with a high near 56.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 39.
Partly Sunny on Monday Monday... Partly sunny, with a high near 60.
20% chance of rain Monday Night Monday Night... A 20 percent chance of showers. Mostly cloudy, with a low around 44.
20% chance of Tuesday Tuesday... A 20 percent chance of showers. Partly sunny, with a high near 59.
Current Radar Image


Sun Almanac for Union, Tennessee
Sunrise: 06:46 AM
Sunset: 4:31 PM
Civil Sunrise:06:18 AM
Civil Sunset: 4:59 PM
Nautical Sunrise: 05:46 AM
Nautical Sunset: 5:31 PM
Astro Sunrise: 05:15 AM
Astro Sunset: 6:03 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.