National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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

Greenfield TNSimilar City Names

  • Overnight

    Overnight: Partly cloudy, with a low around 73. Calm wind.

    Low: 73 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms between 1pm and 4pm. Sunny, with a high near 93. Heat index values as high as 102. Calm wind becoming south southwest around 5 mph. Chance of precipitation is 20%.

    High: 93 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms between midnight and 1am. Patchy fog after 1am. Otherwise, mostly clear, with a low around 72. Calm wind. Chance of precipitation is 20%.

    Low: 72 °F

    Mostly Clear
    then Slight
    Chance
    T-storms and
    Patchy Fog

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Heat index values as high as 102. Calm wind becoming west around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 92 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Patchy fog after midnight. Otherwise, partly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Chance
    T-storms then
    Chance
    Showers 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 west southwest around 5 mph.

    High: 91 °F

    Chance
    T-storms and
    Patchy Fog

  • Thursday Night

    Thursday Night: Patchy fog after 2am. Otherwise, mostly clear, with a low around 72. Calm wind.

    Low: 72 °F

    Partly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Patchy fog before 8am. Otherwise, sunny, with a high near 94. Calm wind becoming south southwest around 5 mph.

    High: 94 °F

    Patchy Fog
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 73. Calm wind.
Tuesday
A slight chance of showers and thunderstorms between 1pm and 4pm. Sunny, with a high near 93. Heat index values as high as 102. Calm wind becoming south southwest around 5 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers and thunderstorms between midnight and 1am. Patchy fog after 1am. Otherwise, mostly clear, with a low around 72. Calm wind. Chance of precipitation is 20%.
Wednesday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Heat index values as high as 102. Calm wind becoming west around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Patchy fog after midnight. 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 west southwest around 5 mph.
Thursday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 72. Calm wind.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Patchy fog before 8am. Otherwise, sunny, with a high near 94. Calm wind becoming south southwest around 5 mph.
Friday Night
Mostly clear, with a low around 73.
Saturday
Patchy fog before 8am. Otherwise, sunny, with a high near 96.
Saturday Night
Mostly clear, with a low around 74.
Sunday
Sunny and hot, with a high near 97.
Sunday Night
Mostly clear, with a low around 74.
Monday
Sunny, with a high near 96.
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ABOUT THIS FORECAST

 
Point Forecast:
Greenfield TNSimilar City Names
 36.17°N 88.81°W (Elev. 374 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