Critical Fire Weather Conditions Continue; Pacific Storm to Bring Heavy Snow to the Sierra-Nevada

Critical fire weather conditions are forecast for the Southern Plains and portions of Florida through Thursday, as gusty winds and dry conditions return to the region. A Pacific storm system will bring strong winds and low elevation rain to much of the West Coast and central Great Basin, and heavy high elevation mountain snow to the Sierra-Nevada through Wednesday. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Mostly Cloudy

74°F

23°C

Humidity 31%
Wind Speed SW 12 G 16 mph
Barometer 30.26 in (1024.0 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 21 Apr 2:53 pm EDT
Extended Forecast for

Maryville TN

  • This Afternoon

    This Afternoon: Sunny, with a high near 77. Southwest wind around 5 mph.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 51. Southwest wind around 5 mph.

    Low: 51 °F

    Partly Cloudy

  • Wednesday

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

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 54. West wind around 5 mph becoming calm.

    Low: 54 °F

    Mostly Clear

  • Thursday

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

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56. Calm wind.

    Low: 56 °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 40 percent chance of showers and thunderstorms, mainly after 2am.  Mostly cloudy, with a low around 60.

    Low: 60 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am.  High near 74. Chance of precipitation is 90%.

    High: 74 °F

    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 77. Southwest wind around 5 mph.
Tonight
Partly cloudy, with a low around 51. Southwest wind around 5 mph.
Wednesday
Sunny, with a high near 80. West wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 54. West wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 82. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 56. 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 40 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 60.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. High near 74. Chance of precipitation is 90%.
Saturday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.
Sunday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 79.
Sunday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Maryville TN
 35.76°N 83.96°W (Elev. 994 ft)
2:26 pm EDT Apr 21, 2026
2pm EDT Apr 21, 2026-6pm EDT Apr 27, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database