Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

Greeneville-Greene County Municipal Airport (KGCY)

Lat: 36.2°NLon: 82.81°WElev: 1608ft.

Overcast

32°F

0°C

Humidity 93%
Wind Speed Calm
Barometer 30.16 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 9 Dec 5:35 am EST
Extended Forecast for

Erwin TN

  • Today

    Today: Partly sunny, with a high near 45. Calm wind becoming west around 5 mph.

    High: 45 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 31. Calm wind becoming south around 5 mph after midnight.

    Low: 31 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers after 1pm.  Mostly sunny, with a high near 52. South wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 30 mph.

    High: 52 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of rain and snow showers before 11pm, then a chance of snow showers between 11pm and 1am.  Mostly cloudy, with a low around 28. West wind 10 to 15 mph, with gusts as high as 40 mph.  Chance of precipitation is 40%.

    Low: 28 °F

    Chance
    Rain/Snow
    then Chance
    Snow Showers

  • Thursday

    Thursday: Mostly cloudy, with a high near 37. West wind 5 to 10 mph, with gusts as high as 25 mph.

    High: 37 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 26. West wind around 5 mph becoming calm.

    Low: 26 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 48. West wind around 5 mph.

    High: 48 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers after 1am.  Mostly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 45. Calm wind becoming west around 5 mph.
Tonight
Partly cloudy, with a low around 31. Calm wind becoming south around 5 mph after midnight.
Wednesday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 52. South wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 30 mph.
Wednesday Night
A chance of rain and snow showers before 11pm, then a chance of snow showers between 11pm and 1am. Mostly cloudy, with a low around 28. West wind 10 to 15 mph, with gusts as high as 40 mph. Chance of precipitation is 40%.
Thursday
Mostly cloudy, with a high near 37. West wind 5 to 10 mph, with gusts as high as 25 mph.
Thursday Night
Mostly cloudy, with a low around 26. West wind around 5 mph becoming calm.
Friday
Partly sunny, with a high near 48. West wind around 5 mph.
Friday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 32.
Saturday
Mostly sunny, with a high near 51.
Saturday Night
A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 32.
Sunday
Mostly sunny, with a high near 41.
Sunday Night
Mostly clear, with a low around 19.
Monday
Mostly sunny, with a high near 44.
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ABOUT THIS FORECAST

 
Point Forecast:
Erwin TN
 36.14°N 82.42°W (Elev. 1726 ft)
12:31 am EST Dec 9, 2025
5am EST Dec 9, 2025-6pm EST Dec 15, 2025
 
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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