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

Greeneville-Greene County Municipal Airport (KGCY)

Lat: 36.2°NLon: 82.81°WElev: 1608ft.

Fair

46°F

8°C

Humidity 66%
Wind Speed Calm
Barometer 30.04 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 4 May 1:15 am EDT
Extended Forecast for

Erwin TN

  • Overnight

    Overnight: Mostly clear, with a low around 45. Calm wind.

    Low: 45 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 76. Calm wind becoming west around 5 mph in the afternoon.

    High: 76 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 53. Calm wind.

    Low: 53 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers, mainly after 2am. Mostly cloudy, with a low around 61. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 61 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, then showers and possibly a thunderstorm after 11am. High near 74. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

    High: 74 °F

    Showers
    Likely then
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 56. Calm wind. Chance of precipitation is 90%.

    Low: 56 °F

    Showers

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. High near 66. Chance of precipitation is 80%.

    High: 66 °F

    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers, mainly before 8pm. Partly cloudy, with a low around 42.

    Low: 42 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 45. Calm wind.
Monday
Sunny, with a high near 76. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 53. Calm wind.
Tuesday
Mostly sunny, with a high near 78. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
A 50 percent chance of showers, mainly after 2am. Mostly cloudy, with a low around 61. South wind around 10 mph, with gusts as high as 20 mph.
Wednesday
Showers likely, then showers and possibly a thunderstorm after 11am. High near 74. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 56. Calm wind. Chance of precipitation is 90%.
Thursday
Showers and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. High near 66. Chance of precipitation is 80%.
Thursday Night
A 30 percent chance of showers, mainly before 8pm. Partly cloudy, with a low around 42.
Friday
Sunny, with a high near 66.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 49.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 68.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 50.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Erwin TN
 36.14°N 82.42°W (Elev. 1726 ft)
Last Update:
1:06 am EDT May 4, 2026
Forecast Valid:
1am EDT May 4, 2026-6pm EDT May 10, 2026
 
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