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

Strong Storm System Brings Heavy Mountain Snow to the Sierra Nevada and Critical Fire Weather Conditions to the Plains

A Pacific storm system will continue to bring low elevation rain and mountain snow to much of the West through Wednesday, with heavy mountain snow expected in the higher elevations of the Sierra Nevada. This system will also bring strong winds to the Intermountain West, Rockies, and Plains, which will create Critical fire weather conditions for the High Plains. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Partly Cloudy

58°F

14°C

Humidity 58%
Wind Speed SW 8 mph
Barometer 30.19 in (1021.5 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 22 Apr 2:53 am EDT
Extended Forecast for

5 Miles SW Maryville TN

  • Overnight

    Overnight: Partly cloudy, with a low around 50. Southwest wind around 5 mph.

    Low: 50 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 80. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52. West wind around 5 mph becoming calm.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82. Calm wind becoming west around 5 mph.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55. Calm wind.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 82. Light and variable wind becoming southwest 5 to 10 mph in the morning.

    High: 82 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of showers, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 59. South wind around 5 mph. Chance of precipitation is 50%.

    Low: 59 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. High near 75. Chance of precipitation is 90%.

    High: 75 °F

    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.

    Low: 55 °F

    Showers
    Likely then
    Chance
    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 50. Southwest wind around 5 mph.
Wednesday
Sunny, with a high near 80. West wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 52. West wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 82. Calm wind becoming west around 5 mph.
Thursday Night
Mostly clear, with a low around 55. Calm wind.
Friday
Mostly sunny, with a high near 82. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Friday Night
A slight chance of showers, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 59. South wind around 5 mph. Chance of precipitation is 50%.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. High near 75. Chance of precipitation is 90%.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Sunday
A slight chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 79. Chance of precipitation is 20%.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 57.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 78.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 59. Chance of precipitation is 70%.
Tuesday
Showers and thunderstorms likely. Partly sunny, with a high near 78. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Maryville TN
 35.7°N 84.05°W (Elev. 997 ft)
Last Update:
2:26 am EDT Apr 22, 2026
Forecast Valid:
3am EDT Apr 22, 2026-6pm EDT Apr 28, 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