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Areas of Excessive Rainfall and Extreme Heat; Monitoring Tropical Storm Erin

Heavy to excessive rainfall over the southern Appalachians may bring areas of flooding Tuesday. Hot to extremely hot temperatures are in place through Tuesday across much of the western U.S. and northern New England. Tropical Storm Erin is forecast to become a Major Hurricane by this weekend as it moves across the central Atlantic Ocean. Monitor future forecasts for any East Coast impacts. Read More >

Current conditions at

Union City - Everett-Stewart Regional Airport (KUCY)

Lat: 36.38°NLon: 88.98°WElev: 341ft.

A Few Clouds

75°F

24°C

Humidity 100%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Last update 12 Aug 1:30 am CDT
Extended Forecast for

Union City TN

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 73. Calm wind.

    Low: 73 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms between 1pm and 3pm. Sunny, with a high near 93. Heat index values as high as 103. Calm wind becoming southwest around 5 mph in the morning. Chance of precipitation is 20%.

    High: 93 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Patchy fog after 1am. Otherwise, mostly clear, with a low around 72. South wind around 5 mph becoming calm.

    Low: 72 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 101. Calm wind becoming west northwest around 5 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms. Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Slight Chance
    T-storms and
    Patchy Fog

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 91. Calm wind becoming south around 5 mph.

    High: 91 °F

    Chance
    T-storms and
    Patchy Fog

  • Thursday Night

    Thursday Night: Patchy fog before midnight, then patchy fog after 1am. Otherwise, mostly clear, with a low around 72. Calm wind.

    Low: 72 °F

    Patchy Fog

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Calm wind becoming south around 5 mph.

    High: 93 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Patchy fog before 3am, then patchy fog after 4am. Otherwise, mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear
    then Patchy
    Fog

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 73. Calm wind.
Tuesday
A slight chance of showers and thunderstorms between 1pm and 3pm. Sunny, with a high near 93. Heat index values as high as 103. Calm wind becoming southwest around 5 mph in the morning. Chance of precipitation is 20%.
Tuesday Night
Patchy fog after 1am. Otherwise, mostly clear, with a low around 72. South wind around 5 mph becoming calm.
Wednesday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 101. Calm wind becoming west northwest around 5 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 71. Calm wind.
Thursday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 91. Calm wind becoming south around 5 mph.
Thursday Night
Patchy fog before midnight, then patchy fog after 1am. Otherwise, mostly clear, with a low around 72. Calm wind.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Calm wind becoming south around 5 mph.
Friday Night
Patchy fog before 3am, then patchy fog after 4am. Otherwise, mostly clear, with a low around 73.
Saturday
Sunny, with a high near 94.
Saturday Night
Mostly clear, with a low around 74.
Sunday
Patchy fog. Otherwise, sunny, with a high near 96.
Sunday Night
Mostly clear, with a low around 74.
Monday
Sunny, with a high near 95.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Union City TN
 36.42°N 89.05°W (Elev. 338 ft)
Last Update:
1:45 am CDT Aug 12, 2025
Forecast Valid:
1am CDT Aug 12, 2025-6pm CDT Aug 18, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation