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

Autumn Temperatures for Eastern Third of the Country; Super Typhoon Approaching Guam

Cooler and less humid conditions for the eastern third of the nation as a cold slides off the east coast. Combination of dry and breezy conditions may result in spread of wildfires across the lower Mississippi Valley. In addition, fire weather conditions linger into portions of Southern California. For Guam, a super typhoon is approaching. Read More >

Hazardous Weather Conditions

Current conditions at

Greeneville-Greene County Municipal Airport (KGCY)

Lat: 36.2°NLon: 82.81°WElev: 1608ft.

Overcast

48°F

9°C

Humidity 94%
Wind Speed Vrbl 3 mph
Barometer 30.24 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 17 Oct 9:15 am EDT
Extended Forecast for

Greeneville TN

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 56. North wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 56 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Areas of frost after 3am. Otherwise, mostly clear, with a low around 33. Northeast wind around 5 mph.

    Low: 33 °F

    Mostly Clear
    then Areas
    Frost

  • Sunday

    Sunday: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 65. Northeast wind around 5 mph.

    High: 65 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Areas of frost after 5am. Otherwise, mostly clear, with a low around 34. East wind around 5 mph.

    Low: 34 °F

    Clear then
    Areas Frost

  • Monday

    Monday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 66. Calm wind becoming north around 5 mph.

    High: 66 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 70. Calm wind becoming north around 5 mph.

    High: 70 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 56. North wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
Areas of frost after 3am. Otherwise, mostly clear, with a low around 33. Northeast wind around 5 mph.
Sunday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 65. Northeast wind around 5 mph.
Sunday Night
Areas of frost after 5am. Otherwise, mostly clear, with a low around 34. East wind around 5 mph.
Monday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 66. Calm wind becoming north around 5 mph.
Monday Night
Mostly clear, with a low around 38. Calm wind.
Tuesday
Sunny, with a high near 70. Calm wind becoming north around 5 mph.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
Sunny, with a high near 72.
Wednesday Night
Clear, with a low around 42.
Thursday
Sunny, with a high near 71.
Thursday Night
Mostly clear, with a low around 44.
Friday
Sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Greeneville TN
 36.15°N 82.84°W (Elev. 1535 ft)
Last Update:
7:06 am EDT Oct 17, 2026
Forecast Valid:
9am EDT Oct 17, 2026-6pm EDT Oct 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation