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

Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Mostly Cloudy

58°F

14°C

Humidity 97%
Wind Speed S 5 mph
Barometer 30.03 in (1016.2 mb)
Dewpoint 57°F (14°C)
Visibility 7.00 mi
Last update 27 Dec 8:53 am EST
Extended Forecast for

4 Miles SE Maryville TN

  • Today

    Today: Mostly sunny, with a high near 73. Calm wind.

    High: 73 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 57. Calm wind becoming southwest around 5 mph.

    Low: 57 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A 20 percent chance of showers. Mostly cloudy, with a high near 74. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 74 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Showers, mainly after 1am. Low around 43. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.

    Low: 43 °F

    Chance
    Showers then
    Showers

  • Monday

    Monday: A 50 percent chance of showers, mainly before 1pm. Mostly sunny, with a high near 53. West wind around 15 mph, with gusts as high as 25 mph.

    High: 53 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 22. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 22 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 36. West wind around 5 mph.

    High: 36 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 73. Calm wind.
Tonight
Increasing clouds, with a low around 57. Calm wind becoming southwest around 5 mph.
Sunday
A 20 percent chance of showers. Mostly cloudy, with a high near 74. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Showers, mainly after 1am. Low around 43. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Monday
A 50 percent chance of showers, mainly before 1pm. Mostly sunny, with a high near 53. West wind around 15 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 22. West wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 36. West wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 22.
Wednesday
Sunny, with a high near 45.
Wednesday Night
Partly cloudy, with a low around 28.
New Year's Day
Mostly sunny, with a high near 46.
Thursday Night
Partly cloudy, with a low around 21.
Friday
Mostly sunny, with a high near 41.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Maryville TN
 35.71°N 83.91°W (Elev. 968 ft)
Last Update:
6:06 am EST Dec 27, 2025
Forecast Valid:
9am EST Dec 27, 2025-6pm EST Jan 2, 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